Use of contact masses,申请号US19330670954-传众专利搜索

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发明名称	Use of contact masses
摘要
申请公布号	US1989927(A)	申请公布日期	1935.02.05
申请号	US19330670954	申请日期	1933.05.13
申请人	HOUDRY PROCESS CORPORATION	发明人	HOUDRY EUGENE J.
分类号	C10G47/00	主分类号	C10G47/00
代理机构		代理人
主权项
地址

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