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JPH04102470A |
PURPOSE: To variously change and regulate the flying distance, rising speed, lowering speed, oscillating state and rotating state of a ball by making the weight of a variable balance equal or more to the weight required to stay a ball bo...
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JPH0469286A |
PURPOSE: To prevent the transfer of a line or dot other than a desired transfer figure by adding a radical polymerizable monomer, a photopolymerization initiator and minute glass globules to a negative type photosensitive masking layer. ...
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JPH0411231B2 |
An improved tennis ball having an integrally molded valve in the sidewalls thereof for assuring constant pressure within the ball and, therefore, constant playing characteristics. The valve is characterized by being of unitary constructi...
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JPH041635B2 |
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JPH0380033B2 |
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JPH03126163U |
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JPH03118770U |
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JPH0376153B2 |
Method of manufacturing bladders for footballs or the like, comprising: (a) applying a thin layer of a coating solution to one sinde of a polyurethane film capable of being formed into inflatible bladders, said film having a thickness of...
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JPH03108643U |
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JPH0388567U |
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JPH0337647Y2 |
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JPH0317896Y2 |
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JPH0373175A |
PURPOSE: To distinguish a rotational axis of a ball easily during flying and make the ball suitable for use under an artificial light or under a bad weather condition by arranging a design on an outer surface of the ball to accentuate vi...
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JPH037177A |
PURPOSE: To get a ball expanded desirably round with a simple means by applying several walls made of elastic material, of which outer shapes correspond to inner dimension of the air bag and of which circumferences connect with the inner...
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JPH03757U |
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JPH02136660U |
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JPH02106265U |
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JPH0228940Y2 |
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JPH02169686A |
PURPOSE: To fix produced sodium ions to thereby prevent the crystallization of NaCl from a supersaturated state by adding a sodium ion acceptor and water to a foaming agent comprising a sodium nitrite/ammonium chloride mixture when foame...
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JPH0277065U |
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JPH0225630B2 |
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JPH0249573U |
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JPH0277474A |
PURPOSE: To obtain a composition which improves a grip of a ball while allowing smooth sliding and optimizes use under a wet condition by comprising a binder or a matrix, which firmly sticks to a ball surface, and a specific inorganic bu...
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JPH0226573A |
PURPOSE: To provide a safe playing ball suitable for a infant child although the ball shape is similar to a conventional air filled game ball by constituting the outer case of a light cloth material and the inner air bag of a conventiona...
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JPH01299572A |
PURPOSE: To manufacture an inflated ball made of vinyl, by a method wherein a hollow part is formed between a back and a surface sheet, by formation of a communicating hole by welding and boring, the hollow parts are intercommunicated, i...
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JPH0135019Y2 |
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JPH0145379B2 |
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JPH0131247Y2 |
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JPH01107368U |
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JPH0187778U |
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JPH0120621B2 |
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JPS6485678A |
PURPOSE: To make it possible to store and transport a ball in the state of removing air therefrom, then to easily expand this ball by foaming a polyvinyl chloride(PVC) compsn. during a rotational molding and incorporating a foaming agent...
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JPS6450862U |
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JPS6446062U |
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JPS6443959U |
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JPS6443958U |
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JPS6420866A |
PURPOSE: To improve light/weather resistance, hydrolysis resistance, abrasion resistance and a low temperature using characteristic by composing polyurethane elastomer of a covering layer mainly out of polymer diol and polyester type pol...
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JPS63193059U |
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JPS63215746A |
PURPOSE: To facilitate molding works in rubber milling, such as dispersion, extrusion and rolling, without detriment to the properties of a playing ball without using any conventional softener, by mixing a rubber component with a metal s...
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JPS63130070U |
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JPS63122457U |
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JPS6339265B2 |
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JPS6327730Y2 |
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JPS6327731Y2 |
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JPS6327732Y2 |
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JPS6379965U |
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JPS6334460U |
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JPS6334459U |
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JPS6332565U |
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JPS6318160U |
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