Method of coating passages,申请号US19340722585-传众专利搜索

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发明名称	Method of coating passages
摘要
申请公布号	US2176891(A)	申请公布日期	1939.10.24
申请号	US19340722585	申请日期	1934.04.26
申请人	CROM JOHN M	发明人	CROM JOHN M.
分类号	B08B9/04;E02B5/02	主分类号	B08B9/04
代理机构		代理人
主权项
地址

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