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发明名称
Hydraulic door operating device
摘要
申请公布号
US2212998(A)
申请公布日期
1940.08.27
申请号
US19390259481
申请日期
1939.03.02
申请人
TURNBULL ELEVATOR COMPANY LIMITED
发明人
CRANE HAROLD C.
分类号
E05F15/02
主分类号
E05F15/02
代理机构
代理人
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地址
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