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发明名称	Washer
摘要
申请公布号	US2117553(A)	申请公布日期	1938.05.17
申请号	US19370137124	申请日期	1937.04.15
申请人	MCLANAHAN & STONE CORPORATION	发明人	FYE WILLIAM A.
分类号	B03B5/56	主分类号	B03B5/56
代理机构		代理人
主权项
地址

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