| 摘要 |
An improved display card holder, adapted for use in bulletin boards, as in arrival and departure boards for airlines, characterized by a retaining channel, in a base member, adapted to slideably receive a linear display card element, and a latch lever arm with a head extending through an opening in the base, which head is resiliently mounted and abuts against and arrests lateral motion of the display card element, so as to detachably secure the display card in the retaining track. A feature of the invention is that the operative elements of the latch are concealed and secured from tampering. A further feature of the invention is that its separate elements may be assembled or removed from the holder without the use of hand tools or fasteners.
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