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法人/股东/高管

发明名称	Roll
摘要
申请公布号	US2063608(A)	申请公布日期	1936.12.08
申请号	US19340727391	申请日期	1934.05.25
申请人	B. F. PERKINS & SON, INC.	发明人	LADE ARCHIBALD C.
分类号	D06C23/04	主分类号	D06C23/04
代理机构		代理人
主权项
地址

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