| 摘要 |
A support member on an electrical floor box or the like includes an opening receiving a cover formed in two parts having mating walls defining a joining line extending across the opening. The outer peripheral walls of the cover parts on opposite sides of the joining line have outwardly extending detents releasably received in recesses in the support member. The outer surfaces of the cover parts have rabbets formed therein adjacent the opposite ends of the joining line, and abutments on the support member are received in the rabbets.
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