Watch stem and crown setting,申请号US19310554778-传众专利搜索

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发明名称	Watch stem and crown setting
摘要
申请公布号	US1948171(A)	申请公布日期	1934.02.20
申请号	US19310554778	申请日期	1931.08.03
申请人	FLORENCE GISIGER	发明人	GISIGER HANS
分类号	G04B27/04	主分类号	G04B27/04
代理机构		代理人
主权项
地址

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