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发明名称	Seal
摘要
申请公布号	US2305725(A)	申请公布日期	1942.12.22
申请号	US19390279295	申请日期	1939.06.15
申请人	ROTARY SEAL COMPANY	发明人	MEYER WALTER W.
分类号	F16J15/38	主分类号	F16J15/38
代理机构		代理人
主权项
地址

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