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发明名称
Elapsed time indicator and controller
摘要
申请公布号
US3029384(A)
申请公布日期
1962.04.10
申请号
US19600077868
申请日期
1960.12.23
申请人
HART SYLVAN L
发明人
HART SYLVAN L.
分类号
G01R22/02;H01H43/32
主分类号
G01R22/02
代理机构
代理人
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