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经营范围
发明名称
Underfloor duct with particularly spaced access openings
摘要
申请公布号
US3166631(A)
申请公布日期
1965.01.19
申请号
US19620226960
申请日期
1962.09.28
申请人
SQUARE D COMPANY
发明人
REILAND FRANK D.
分类号
E04B5/48;H02G3/12
主分类号
E04B5/48
代理机构
代理人
主权项
地址
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