Material working apparatus and control therefor,申请号US19330684677-传众专利搜索

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发明名称	Material working apparatus and control therefor
摘要
申请公布号	US2215257(A)	申请公布日期	1940.09.17
申请号	US19330684677	申请日期	1933.08.11
申请人	SVENSON ERNEST J	发明人	SVENSON ERNEST J.
分类号	B23B7/02	主分类号	B23B7/02
代理机构		代理人
主权项
地址

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