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经营范围
发明名称
Washboard
摘要
申请公布号
US2312220(A)
申请公布日期
1943.02.23
申请号
US19420426612
申请日期
1942.01.13
申请人
FRED R. ORMSBY;MERRILL M. SITZ
发明人
SNYDER JOHN L.
分类号
D06F3/02
主分类号
D06F3/02
代理机构
代理人
主权项
地址
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