发明名称 Calendar timepiece
摘要 A calendar timepiece which does not require any manual date correction at the end of even months is disclosed. The timepiece comprises an even months date correction claw mounted on a date rotational wheel and displaced into a correction position when a claw driving coil is energized by a signal delivered from means for discriminating odd months from even months.
申请公布号 US4198808(A) 申请公布日期 1980.04.22
申请号 US19780909475 申请日期 1978.05.25
申请人 CITIZEN WATCH CO LTD 发明人 TAMARU, MUNETAKA
分类号 G04C3/14;G04B19/253;G04C3/00;G04C17/00;G09D3/12;(IPC1-7):G04B19/24 主分类号 G04C3/14
代理机构 代理人
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