Abstract: Attachment plates which are constructed to slidably interlock with various items including containers, housings, walls, fixtures and other entities in which the sliding interlocking connection includes male and female dovetailed, longitudinally wedge shaped structures with the attachment plates being capable of connecting various items, articles, containers and the like with the attachment plate including a support structure to enable the connected items to be carried or effectively supported, handled and the like with the wedge shaped configuration of the dovetailed connection providing a positive and secure interconnection between the attachment plate and the item connected thereto. The items or articles, such as containers or the like, are constructed with the wedge shaped tapered dovetailed connection facilities on surface portions thereof to enable a plurality of the items to be connected to each other or connected to the attachment plate.

Abstract: An article holder having general utility for receiving and securely holding various articles, objects or other entities in a secure and safe manner. The article holder includes a wall, base or other supporting panel-like structure having an opening therein having a periphery defined by a plurality of circumferentially spaced segments forming a receiver for an article, object or other entity together with resilient means which resists radial expansion of the segments and exerts radial inward force on the segments for secure engagement with an article, object or other entity inserted into the receiver defined by the circumferentially spaced segments. The shape or configuration, size and materials from which the article holder is constructed may be varied depending upon the end use requirements.