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发明名称
Turntable lock
摘要
申请公布号
US1808898(A)
申请公布日期
1931.06.09
申请号
US19290400363
申请日期
1929.10.17
申请人
BAY CITY SHOVELS, INC.
发明人
KERR JOHN M.
分类号
E02F9/12
主分类号
E02F9/12
代理机构
代理人
主权项
地址
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