Balance bearing for clocks and the like,申请号US19280308831-传众专利搜索

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发明名称	Balance bearing for clocks and the like
摘要
申请公布号	US1843868(A)	申请公布日期	1932.02.02
申请号	US19280308831	申请日期	1928.09.27
申请人	ROY COPELIN LE	发明人	COPELIN LE ROY
分类号	G04B31/02	主分类号	G04B31/02
代理机构		代理人
主权项
地址

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