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经营范围
发明名称
Counterbalance for overhead doors
摘要
申请公布号
US2314015(A)
申请公布日期
1943.03.16
申请号
US19410380624
申请日期
1941.02.26
申请人
THE STANLEY WORKS
发明人
PARSONS STUART W.
分类号
E05D15/24
主分类号
E05D15/24
代理机构
代理人
主权项
地址
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