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发明名称
Engraving machine
摘要
申请公布号
US2247761(A)
申请公布日期
1941.07.01
申请号
US19390272760
申请日期
1939.05.10
申请人
WESTERN ELECTRIC COMPANY, INCORPORATED
发明人
MCCOY CLARENCE E.;NIELSEN OLIVER M.;OBERT EDWARD
分类号
B44B3/00;B44B3/06
主分类号
B44B3/00
代理机构
代理人
主权项
地址
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