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发明名称
Elevator overload safety device
摘要
申请公布号
US2644547(A)
申请公布日期
1953.07.07
申请号
US19490135697
申请日期
1949.12.29
申请人
WILLIAM DOOLAN
发明人
DOOLAN WILLIAM
分类号
B66B5/14
主分类号
B66B5/14
代理机构
代理人
主权项
地址
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