发明名称 Recessed plaster collar assembly
摘要 A plaster collar assembly having a first ring, a second ring secured to the first ring, and a mechanism arranged at an outer periphery of at least one of the rings for axially displacing the first and second rings during rotation of the secured rings relative to each other.
申请公布号 US7827737(B2) 申请公布日期 2010.11.09
申请号 US20090407598 申请日期 2009.03.19
申请人 COOPER TECHNOLOGIES COMPANY 发明人 ZIOBRO DAVID JUDE;WHITING VERGENIA CHANLEL;UNDERWOOD JEFF EDWARD;LEE JAMES B.
分类号 E02D29/14;F21V21/04 主分类号 E02D29/14
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