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经营范围
发明名称
Breakable connection in link arm of a door operator
摘要
申请公布号
US2789813(A)
申请公布日期
1957.04.23
申请号
US19550496414
申请日期
1955.03.24
申请人
SUPERIOR COACH CORPORATION
发明人
RUNKLE GEORGE LA VERNE
分类号
E05F15/04
主分类号
E05F15/04
代理机构
代理人
主权项
地址
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