Manufacture of pressure vessels,申请号US19320636818-传众专利搜索

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发明名称	Manufacture of pressure vessels
摘要
申请公布号	US1991556(A)	申请公布日期	1935.02.19
申请号	US19320636818	申请日期	1932.10.08
申请人	M. W. KELLOGG CO.	发明人	HOPKINS ROBERT K.
分类号	B21D51/24	主分类号	B21D51/24
代理机构		代理人
主权项
地址

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