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发明名称
Beam drive
摘要
申请公布号
US2196000(A)
申请公布日期
1940.04.02
申请号
US19380211223
申请日期
1938.06.01
申请人
GENERAL ELECTRIC COMPANY
发明人
RICHARDSON ERNEST L.
分类号
B65H18/16;B65H23/195;B65H54/52;D03D49/20
主分类号
B65H18/16
代理机构
代理人
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