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经营范围
发明名称
DOOR OPERATOR
摘要
申请公布号
US3591981(A)
申请公布日期
1971.07.13
申请号
USD3591981
申请日期
1969.03.10
申请人
TILT-A-DOOR CORP.
发明人
JOHN R. LAW
分类号
E05F15/10;(IPC1-7):E05F15/12
主分类号
E05F15/10
代理机构
代理人
主权项
地址
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