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发明名称
Door controller
摘要
申请公布号
US2595291(A)
申请公布日期
1952.05.06
申请号
US19470725178
申请日期
1947.01.30
申请人
RAMSEY THOMAS B;GRAY ELDON S
发明人
RAMSEY THOMAS B.;GRAY ELDON S.
分类号
E05F15/00;E05F15/14
主分类号
E05F15/00
代理机构
代理人
主权项
地址
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