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发明名称
Garage door operating mechanism
摘要
申请公布号
US2430729(A)
申请公布日期
1947.11.11
申请号
US19440545215
申请日期
1944.07.17
申请人
NEGRI JOHN A
发明人
NEGRI JOHN A.
分类号
E05F15/16
主分类号
E05F15/16
代理机构
代理人
主权项
地址
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