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发明名称
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摘要
申请公布号
US2383944(A)
申请公布日期
1945.09.04
申请号
US19430493915
申请日期
1943.07.08
申请人
SALTZ FRANK H
发明人
SALTZ FRANK H.
分类号
B42F17/08
主分类号
B42F17/08
代理机构
代理人
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