发明名称 Suspended ceiling assembly
摘要 A suspended ceiling constructed of wood having main beams and cross beams arranged to receive and support ceiling tiles. Each beam having horizontally projecting side extensions with the ends of the cross beams being grooved to frictionally fit on the side extensions of the main beam.
申请公布号 US4841709(A) 申请公布日期 1989.06.27
申请号 US19870025636 申请日期 1987.03.13
申请人 PETERSON, MARVIN;PETROSKE, RICHARD 发明人 PETERSON, MARVIN;PETROSKE, RICHARD
分类号 E04B9/06;E04B9/12 主分类号 E04B9/06
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