| prov:value
| - Backing member 20 can be flexible or nonflexible and suitable materials include, without limitation, cellophane, cellulose acetate, ethylcellulose, plasticized vinyl acetate-vinyl chloride copolymers, polyethylene terephthalate, polyethylene terephthalate/ethylene vinyl acetate, nylon, high and low density polyethylene, polypropylene, polyester, polycarbonate, polyurethane or other polyester films
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