(under subclass 137) Device comprising a rigid platelike element having a horizontal article-supporting surface which is substantially longer and wider than its thickness.
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144, for a tray having legs or other means for supporting the tray on a surface or mounting it to a support.
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206, Special Receptacle or Package,
557+, for a shallow receptacle (e.g., tray) provided with structure peculiarly adapting it for use with a specific type of article (e.g., "having a recess configured for supporting a hypodermic syringe"; however, limitation such as "a plurality of round apertures" or "circular recesses" is not considered to be peculiar to any article and those patents claiming such structure have been placed as originals in Class 294.
211, Supports: Racks,
126.1+, for tray or receptacle type racks. Trays which are claimed with carrying handles or which are disclosed only as hand-held carriers have been classified in Class 294.