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发明名称
Counterbalance and stop means for upwardly acting closures
摘要
申请公布号
US3095922(A)
申请公布日期
1963.07.02
申请号
US19580726385
申请日期
1958.04.04
申请人
OVERHEAD DOOR CORPORATION
发明人
FRAZIER RUSSEL B.
分类号
E05D15/26;E06B9/56
主分类号
E05D15/26
代理机构
代理人
主权项
地址
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