| http://www.w3.org/ns/prov#value | - As shown in FIGS. 8-11, the apparatus 12 consists of three frames which may be of rectangular shape; a bottom frame 13 which may be constructed of aluminum or steel or other inflexible material such as wood or hard plastic, and which has a resilient gasket 14 which may be silicone rubber or other synthetic material, affixed to its upper surface.
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