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经营范围
发明名称
Cace lock
摘要
申请公布号
US1885277(A)
申请公布日期
1932.11.01
申请号
US19300462810
申请日期
1930.06.21
申请人
MINING SAFETY DEVICE COMPANY
发明人
MERRITT GLENN W.
分类号
B66B17/24
主分类号
B66B17/24
代理机构
代理人
主权项
地址
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