Self-aligning canopy structure for connection to a mounting plate adapter utilized for attaching an exit sign to a junction box
作者： David A. Vosika , Drusilla L. Underwood
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摘要: A structure for aligning a canopy an exit sign with standard wall-mounted electrical junction box. The is constituted of separate plate which adapted to be fastened the back cover so as form mounting facilitating attachment box, and incorporates slots engaged by protuberances on latter box in predetermined selective orientations.
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