Gaseous tube bending machine,申请号US19380211955-传众专利搜索

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发明名称	Gaseous tube bending machine
摘要
申请公布号	US2239055(A)	申请公布日期	1941.04.22
申请号	US19380211955	申请日期	1938.06.04
申请人	SAWYER DAVID F	发明人	SAWYER DAVID F.
分类号	C03B23/06	主分类号	C03B23/06
代理机构		代理人
主权项
地址

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