Parallel ruling means,申请号US19460698180-传众专利搜索

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发明名称	Parallel ruling means
摘要
申请公布号	US2488284(A)	申请公布日期	1949.11.15
申请号	US19460698180	申请日期	1946.09.20
申请人	HAMILTON MANUFACTURING COMPANY	发明人	FROELICH GEORGE E.
分类号	B43L13/04	主分类号	B43L13/04
代理机构		代理人
主权项
地址

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