Sheet metal assembly and method of making it,申请号US19470754721-传众专利搜索

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发明名称	Sheet metal assembly and method of making it
摘要
申请公布号	US2464506(A)	申请公布日期	1949.03.15
申请号	US19470754721	申请日期	1947.06.14
申请人	CHARLES HIRSCHFELD	发明人	HIRSCHFELD CHARLES
分类号	B21D51/42	主分类号	B21D51/42
代理机构		代理人
主权项
地址

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