Method of making pipe,申请号US19290336402-传众专利搜索

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发明名称	Method of making pipe
摘要
申请公布号	US1934853(A)	申请公布日期	1933.11.14
申请号	US19290336402	申请日期	1929.01.31
申请人	METROPOLITAN ENGINEERING COMPANY	发明人	HOLMES HENRY S.
分类号	B23K11/00	主分类号	B23K11/00
代理机构		代理人
主权项
地址

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