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NAT BOOK SWAP LLC

US2 patents

Top patents by PatentIndex Score

US7877315B2Jan 25, 2011

System and method for swapping of tangible items

NAT BOOK SWAP LLC14 citations79

US8751325B2Jun 10, 2014

System and method for swapping of tangible and intangible items

NAT BOOK SWAP LLC1 citations48