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Rotary Vacuum Storage System is a kind of revolutionary vacuum canister to come with built-in vacuum device in the lid. By rotating lid in clockwise and anticlockwise repeatedly, a patented mechanical device causes self vacuum force inside the canister... More
Multi-purpose Christmas tree stand pot was awarded bronze medal in 1997. The 13th (Inpex), Pittsburgh.The 26th salon international des inventions, Geneva 1998.Patens: (1)US: 346345 (2)R.O.C.: 38055 (3)U.K: 2029621 (4)ZL 95... More
