Hand operated tubing flanger,申请号US19340741445-传众专利搜索

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发明名称	Hand operated tubing flanger
摘要
申请公布号	US2018832(A)	申请公布日期	1935.10.29
申请号	US19340741445	申请日期	1934.08.25
申请人	BULMER FRED M	发明人	BULMER FRED M.
分类号	B21D41/02	主分类号	B21D41/02
代理机构		代理人
主权项
地址

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