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发明名称
Reel driving system
摘要
申请公布号
US2528580(A)
申请公布日期
1950.11.07
申请号
US19450593888
申请日期
1945.05.15
申请人
PRATT & GRAY COMPANY, INC.
发明人
COLOMY ROY H.;BOENISCH CHARLES J.
分类号
B65H54/44;G03B21/32
主分类号
B65H54/44
代理机构
代理人
主权项
地址
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