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发明名称
DAMPER CONSTRUCTION
摘要
申请公布号
CA760718(A)
申请公布日期
1967.06.13
申请号
CAD760718
申请日期
申请人
ARROW LOUVER AND DAMPER CORP.
发明人
ALEX BOBROWICH;ELLIOT KAHN
分类号
主分类号
代理机构
代理人
主权项
地址
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