Ball warper,申请号US19240687419-传众专利搜索

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发明名称	Ball warper
摘要
申请公布号	US1833495(A)	申请公布日期	1931.11.24
申请号	US19240687419	申请日期	1924.01.21
申请人	BARBER-COLMAN COMPANY	发明人	PETERSON BURT A.
分类号	D02H3/00	主分类号	D02H3/00
代理机构		代理人
主权项
地址

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