Tractor-borne pipe bending machine,申请号US19520275800-传众专利搜索

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发明名称	Tractor-borne pipe bending machine
摘要
申请公布号	US2694434(A)	申请公布日期	1954.11.16
申请号	US19520275800	申请日期	1952.03.10
申请人	BENNETT PETTY JOHN	发明人	PETTY JOHN BENNETT
分类号	B21D7/022	主分类号	B21D7/022
代理机构		代理人
主权项
地址

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