Process for concentrating nitrous gases,申请号US19270238729-传众专利搜索

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发明名称	Process for concentrating nitrous gases
摘要
申请公布号	US1765254(A)	申请公布日期	1930.06.17
申请号	US19270238729	申请日期	1927.12.08
申请人	TROJAN POWDER COMPANY	发明人	WYLER JOSEPH A.
分类号	C01B21/50	主分类号	C01B21/50
代理机构		代理人
主权项
地址

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