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经营范围
发明名称
Garage door operating mechanism
摘要
申请公布号
US2175957(A)
申请公布日期
1939.10.10
申请号
US19370119148
申请日期
1937.01.05
申请人
CHESTER DELL THOMAS
发明人
DELL THOMAS CHESTER
分类号
E05D15/42
主分类号
E05D15/42
代理机构
代理人
主权项
地址
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