Rotary seal,申请号US19520274155-传众专利搜索

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发明名称	Rotary seal
摘要
申请公布号	US2747903(A)	申请公布日期	1956.05.29
申请号	US19520274155	申请日期	1952.02.29
申请人	METAL SEAL & PRODUCTS, INC.	发明人	HEINRICH AUGUST H.
分类号	F16J15/34	主分类号	F16J15/34
代理机构		代理人
主权项
地址

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