Compensating spring and alloy for timepieces,申请号US19360100543-传众专利搜索

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发明名称	Compensating spring and alloy for timepieces
摘要
申请公布号	US2151197(A)	申请公布日期	1939.03.21
申请号	US19360100543	申请日期	1936.09.12
申请人	WALTHAM WATCH COMPANY	发明人	FLAGG FREDERICK P.
分类号	C22C38/08	主分类号	C22C38/08
代理机构		代理人
主权项
地址

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