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发明名称
Picker stick check
摘要
申请公布号
US2550798(A)
申请公布日期
1951.05.01
申请号
US19490094640
申请日期
1949.05.21
申请人
HARRY FROHMAN
发明人
FROHMAN HARRY
分类号
D03D49/38
主分类号
D03D49/38
代理机构
代理人
主权项
地址
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