Drawing roll,申请号US19380222282-传众专利搜索

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发明名称	Drawing roll
摘要
申请公布号	US2198279(A)	申请公布日期	1940.04.23
申请号	US19380222282	申请日期	1938.07.30
申请人	JAN WEINBERGER	发明人	WEINBERGER JAN
分类号	D01H5/74	主分类号	D01H5/74
代理机构		代理人
主权项
地址

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