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JPS57154469U |
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JPS57152171U |
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JPS57152170U |
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JPS5741024Y2 |
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JPS57136361U |
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JPS57134175A |
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JPS57130656U |
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JPS57120054U |
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JPS57115271A |
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JPS57112882A |
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JPS57107565U |
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JPS57107566U |
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JPS5730551B2 |
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JPS5727593Y2 |
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JPS5726843Y2 |
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JPS5790168U |
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JPS5790169U |
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JPS5726143B2 |
An apparatus for shooting a curve ball used in the practice of baseball, table tennis, or tennis. A conventional shooting mechanism substantially comprises a flexible hose through which a ball is carried under air pressure, a loop holder...
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JPS5767765U |
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JPS5719163Y2 |
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JPS5719160Y2 |
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JPS5764363U |
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JPS5760662U |
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JPS5757872U |
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JPS5751569U |
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JPS5712453B2 |
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JPS5712624B2 |
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JPS5740468U |
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JPS5721368U |
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JPS5717670A |
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JPS577564U |
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JPS577565U |
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JPS571969Y2 |
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JPS571971Y2 |
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JPS56176764U |
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JPS56166861A |
A short tennis racket having an oblong, oval shaped head.
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JPS56163670A |
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JPS56166065U |
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JPS56166066U |
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JPS56163462U |
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JPS56151069A |
A racquet for use in playing a simulated tennis game on a court of reduced dimensions having an area approximately one third that of a standard tennis court. The racquet has a strung weight in the range from 340 to 400 grams, a length be...
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JPS5649643Y2 |
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JPS56152685U |
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JPS56150568U |
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JPS56143183A |
A tennis practicing machine is disclosed which has a rotating arm for periodically projecting a tennis ball towards a player. A spring connected to the rotating arm stores a rotating force which is periodically released as the rotating a...
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JPS56135764U |
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JPS56125270U |
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JPS5630368Y2 |
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JPS5687063U |
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JPS5629012Y2 |
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