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发明名称
Elevator brake
摘要
申请公布号
US1834440(A)
申请公布日期
1931.12.01
申请号
US19290394630
申请日期
1929.09.23
申请人
WHITNEY VINCENT J
发明人
WHITNEY VINCENT J.
分类号
B66D5/00
主分类号
B66D5/00
代理机构
代理人
主权项
地址
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