发明授权
US4449129A Multiple position recorder 失效
多位置记录仪

Multiple position recorder
摘要:
A multiple position recorder having mechanisms for rocking a check lever for preventing a dot print wheel or dot and figure print wheels from lowering which is mechanically constructed while the recorders other mechanisms, such as mechanisms for setting the gap of dot printing and figure printing, mechanisms for synchronization with a driving shaft and the like are constructed by electric circuits.
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