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发明名称
Watchmaker's caliper
摘要
申请公布号
US2429139(A)
申请公布日期
1947.10.14
申请号
US19450574098
申请日期
1945.01.23
申请人
HAMMEL, RIGLANDER & CO. INC.
发明人
SCARDACCIONE EDWARD
分类号
G04D7/08
主分类号
G04D7/08
代理机构
代理人
主权项
地址
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