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发明名称	Seal
摘要
申请公布号	US1871943(A)	申请公布日期	1932.08.16
申请号	US19300433449	申请日期	1930.03.05
申请人	STANDARD OIL COMPANY	发明人	ATWELL HAROLD V.
分类号	F16K17/194	主分类号	F16K17/194
代理机构		代理人
主权项
地址

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