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发明名称
Overhead door operator
摘要
申请公布号
US3186038(A)
申请公布日期
1965.06.01
申请号
US19630276936
申请日期
1963.04.30
申请人
BEAR RALSTON E
发明人
BEAR RALSTON E.
分类号
E05F9/00
主分类号
E05F9/00
代理机构
代理人
主权项
地址
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