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发明名称
Reel driving and control mechanism
摘要
申请公布号
US2639336(A)
申请公布日期
1953.05.19
申请号
US19470731121
申请日期
1947.02.26
申请人
JOY MANUFACTURING COMPANY
发明人
WOOLF JAMES W.
分类号
B65H75/34;E21F13/02;H02G11/02
主分类号
B65H75/34
代理机构
代理人
主权项
地址
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