Self-locking duct take-off,申请号US19570696511-传众专利搜索

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发明名称	Self-locking duct take-off
摘要
申请公布号	US2965397(A)	申请公布日期	1960.12.20
申请号	US19570696511	申请日期	1957.11.14
申请人	HENDRICKS SUPPLY COMPANY, INC.	发明人	BERG ROY VANDEN
分类号	F16L9/02;F16L41/02	主分类号	F16L9/02
代理机构		代理人
主权项
地址

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