Guard attachment for wringers,申请号US19300500783-传众专利搜索

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发明名称	Guard attachment for wringers
摘要
申请公布号	US1830109(A)	申请公布日期	1931.11.03
申请号	US19300500783	申请日期	1930.12.08
申请人	GEORGE J. ERVIN	发明人	JOHNSON WILLIAM F.
分类号	D06F45/28	主分类号	D06F45/28
代理机构		代理人
主权项
地址

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