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发明名称
Journal box and dust guard
摘要
申请公布号
US2441645(A)
申请公布日期
1948.05.18
申请号
US19440550619
申请日期
1944.08.22
申请人
SALE WILLIAM H
发明人
SALE WILLIAM H.
分类号
B61F15/22
主分类号
B61F15/22
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代理人
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