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摘要
申请公布号
US1998173(A)
申请公布日期
1935.04.16
申请号
US19320643982
申请日期
1932.11.23
申请人
SHORTLIDGE WENTWORTH H
发明人
SHORTLIDGE WENTWORTH H.
分类号
B42F17/18
主分类号
B42F17/18
代理机构
代理人
主权项
地址
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