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JP51151483 |
PURPOSE: An information transmission system, that realizes a system having simple construction and few signal wires for connection.
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JP51126099 |
PURPOSE: To obtain an alarm system to carry out the detection under abnormal situations and to investigate the opening and closing conditions all of a contact point of the mechanism observing the air regulator and the firm alarm mechanis...
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JP51117898 |
PURPOSE: A number of indicator points are driven by power source of a relatively small capacity to save electricity and wiring cost by lighting an indication unit using repetitive synchronous scanning pulse signal which is shorter than t...
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