Filter unit for tobacco pipes,申请号US19390302477-传众专利搜索

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发明名称	Filter unit for tobacco pipes
摘要
申请公布号	US2267795(A)	申请公布日期	1941.12.30
申请号	US19390302477	申请日期	1939.11.02
申请人	LANGE EDWARD H	发明人	LANGE EDWARD H.
分类号	A24F1/00	主分类号	A24F1/00
代理机构		代理人
主权项
地址

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