Pipe-cutting machine,申请号US19290382539-传众专利搜索

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发明名称	Pipe-cutting machine
摘要
申请公布号	US1801038(A)	申请公布日期	1931.04.14
申请号	US19290382539	申请日期	1929.07.31
申请人	EWING WYLIE B	发明人	EWING WYLIE B.
分类号	B23D21/00	主分类号	B23D21/00
代理机构		代理人
主权项
地址

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