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发明名称
Doorcheck
摘要
申请公布号
US1757261(A)
申请公布日期
1930.05.06
申请号
US19290331536
申请日期
1929.01.10
申请人
CONCEALED DOOR CHECK COMPANY
发明人
SIMMONS HERBERT G.
分类号
E05C17/36
主分类号
E05C17/36
代理机构
代理人
主权项
地址
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