Pyroxylin plastic tab,申请号US19310582787-传众专利搜索

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发明名称	Pyroxylin plastic tab
摘要
申请公布号	US1983878(A)	申请公布日期	1934.12.11
申请号	US19310582787	申请日期	1931.12.23
申请人	RAND CHARLES F	发明人	RAND CHARLES F.
分类号	B42F19/00	主分类号	B42F19/00
代理机构		代理人
主权项
地址

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