发明名称 GRID FOR SUSPENDED CEILING.
摘要 In a ceiling grid for a suspended, ceiling having 2 ft. x 2 ft. openings that support panels, a connection in the grid between a main beam and 4 ft. cross beam is made tighter than a connection in the grid between a 2 ft. cross beam and a 4 ft. cross beam. Both connections use the same connector, but with a different stop position on the connector.
申请公布号 MXPA03003358(A) 申请公布日期 2005.08.16
申请号 MX2003PA03358 申请日期 2003.04.15
申请人 WORTHINGTON ARMSTRONG VENTURE. 发明人 PLATT, WILLIAM, J
分类号 E04B9/12;(IPC1-7):F04C2/40 主分类号 E04B9/12
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