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发明名称
Power unit
摘要
申请公布号
US1801939(A)
申请公布日期
1931.04.21
申请号
US19290337637
申请日期
1929.02.05
申请人
HARRY SOPKIN;GORMAN BENJAMIN H
发明人
SOPKIN HARRY;GORMAN BENJAMIN H.
分类号
D05B69/12
主分类号
D05B69/12
代理机构
代理人
主权项
地址
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