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发明名称
Mechanical door opening mechanism for garages
摘要
申请公布号
US2822166(A)
申请公布日期
1958.02.04
申请号
US19540428505
申请日期
1954.05.10
申请人
HERBERT CHARLES C
发明人
HERBERT CHARLES C.
分类号
E05F15/16
主分类号
E05F15/16
代理机构
代理人
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