An open mouthed bag of flexible, preferably waterproof material having a pair of mating elongated fastener strips secured to the opposite inner surfaces thereof adjacent the open mouth for a complete sealing of the bag. A second pair of elongated mating fastener strips are utilized with one of these...http://www.google.co.uk/patents/US4079767?utm_source=gb-gplus-sharePatent US4079767 - Bag construction
