Manufacture of slide fastener elements,申请号US19370179299-传众专利搜索

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发明名称	Manufacture of slide fastener elements
摘要
申请公布号	US2221740(A)	申请公布日期	1940.11.12
申请号	US19370179299	申请日期	1937.12.11
申请人	CONMAR PRODUCTS CORPORATION	发明人	ULRICH FREDERICK
分类号	B21D53/50	主分类号	B21D53/50
代理机构		代理人
主权项
地址

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