ZZ-C-00811B, INTERIM SPECIFICATION, CUSHION, CARPET AND RUG, CELLULAR RUBBER (2 JAN 1963)

ZZ-C-00811B, INTERIM SPECIFICATION, CUSHION, CARPET AND RUG, CELLULAR RUBBER (2 JAN 1963)., This specification covers rubber cushion for use in preventing slipping of rugs and carpets on polished floors, to add to the Cushioning effect, and to reduce the year on the carpet or rug.