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发明名称
MAIL CANCELLING APPARATUS
摘要
申请公布号
CA398692(A)
申请公布日期
1941.08.19
申请号
CAD398692
申请日期
申请人
PAUL EMILE MORIN
发明人
PAUL EMILE MORIN
分类号
主分类号
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代理人
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