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发明名称
ELEVATOR DOOR OPERATOR WITH DIFFERENTIAL TORQUE MOTOR SYSTEM
摘要
申请公布号
US3604537(A)
申请公布日期
1971.09.14
申请号
USD3604537
申请日期
1969.01.27
申请人
MONTGOMERY ELEVATOR CO.
发明人
HENRY J. HOLUBA
分类号
H02P7/298;(IPC1-7):B66B13/00
主分类号
H02P7/298
代理机构
代理人
主权项
地址
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