Tube expander and method of expanding tubes,申请号US19290385918-传众专利搜索

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发明名称	Tube expander and method of expanding tubes
摘要
申请公布号	US1813096(A)	申请公布日期	1931.07.07
申请号	US19290385918	申请日期	1929.08.14
申请人	STENNER KARL A	发明人	STENNER KARL A.
分类号	B21C37/24	主分类号	B21C37/24
代理机构		代理人
主权项
地址

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