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经营范围
发明名称
Marine chronometer double track escape and projection system
摘要
申请公布号
US2501266(A)
申请公布日期
1950.03.21
申请号
US19450633946
申请日期
1945.12.10
申请人
ELGIN NATIONAL WATCH COMPANY
发明人
ENSIGN GEORGE G.;LAWSON ROBERT R.;SCHAEFER EARL H.;JR. WENZEL M. WOCHOS,
分类号
G04B15/00;G04D7/06
主分类号
G04B15/00
代理机构
代理人
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地址
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