Synthetic contact masses and their preparation,申请号US19370174966-传众专利搜索

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发明名称	Synthetic contact masses and their preparation
摘要
申请公布号	US2283173(A)	申请公布日期	1942.05.19
申请号	US19370174966	申请日期	1937.11.17
申请人	HOUDRY PROCESS CORPORATION	发明人	BATES JOHN R.
分类号	B01J21/16;B01J29/06;C01B33/46;F01L1/245	主分类号	B01J21/16
代理机构		代理人
主权项
地址

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