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发明名称
Lock guard
摘要
申请公布号
US2049796(A)
申请公布日期
1936.08.04
申请号
US19350024848
申请日期
1935.06.04
申请人
BARRY WALTER M
发明人
BARRY WALTER M.
分类号
E05B17/20
主分类号
E05B17/20
代理机构
代理人
主权项
地址
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