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发明名称
Calculating device
摘要
申请公布号
US2698135(A)
申请公布日期
1954.12.28
申请号
US19380246681
申请日期
1938.12.19
申请人
AMERICAN BOSCH ARMA CORPORATION
发明人
DAVIS ARTHUR P.;MACOMBER JAMES K.
分类号
F41G5/08
主分类号
F41G5/08
代理机构
代理人
主权项
地址
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