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发明名称
Automatcally operated cutting wheel for opening envelopes
摘要
申请公布号
US2656889(A)
申请公布日期
1953.10.27
申请号
US19490120021
申请日期
1949.10.07
申请人
INDUSTRIAL MOLDED PRODUCTS CO. INC.
发明人
KAPLAN BENJAMIN B.
分类号
B43M7/00
主分类号
B43M7/00
代理机构
代理人
主权项
地址
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