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经营范围
发明名称
Washer
摘要
申请公布号
US2175424(A)
申请公布日期
1939.10.10
申请号
US19370180339
申请日期
1937.12.17
申请人
YOUNG LEONARD A
发明人
YOUNG LEONARD A.
分类号
F16B43/00
主分类号
F16B43/00
代理机构
代理人
主权项
地址
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