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This unique t-shirt features Clinometer schematics from a genuine vintage U.S. Patent filed in 1959! These shirts look awesome, fit well, are great conversation starters and an excellent gift for...

This unique t-shirt features Garbage Truck schematics from a genuine vintage U.S. Patent filed in 1992! These shirts look awesome, fit well, are great conversation starters and an excellent gift...

This unique t-shirt features Ore Separator schematics from a genuine vintage U.S. Patent filed in 1940! These shirts look awesome, fit well, are great conversation starters and an excellent gift...

This unique t-shirt features Air Conditioner schematics from a genuine vintage U.S. Patent filed in 1968! These shirts look awesome, fit well, are great conversation starters and an excellent gift...

This unique t-shirt features Water Treatment schematics from a genuine vintage U.S. Patent filed in 1963! These shirts look awesome, fit well, are great conversation starters and an excellent gift...

This unique t-shirt features Weed Whacker schematics from a genuine vintage U.S. Patent filed in 1953! These shirts look awesome, fit well, are great conversation starters and an excellent gift...

This unique t-shirt features Reel Lawn Mower schematics from a genuine vintage U.S. Patent filed in 1918! These shirts look awesome, fit well, are great conversation starters and an excellent gift...

This unique t-shirt features Circuit Breaker schematics from a genuine vintage U.S. Patent filed in 1901! These shirts look awesome, fit well, are great conversation starters and an excellent gift...

This unique t-shirt features Jet Ski schematics from a genuine vintage U.S. Patent filed in 1987! These shirts look awesome, fit well, are great conversation starters and an excellent gift for...

This unique t-shirt features Golden Gate Bridge schematics from a genuine vintage U.S. Patent filed in 1923! These shirts look awesome, fit well, are great conversation starters and an excellent...

This unique t-shirt features Arch Bridge schematics from a genuine vintage U.S. Patent filed in 1911! These shirts look awesome, fit well, are great conversation starters and an excellent gift for...

This unique t-shirt features Tower Crane schematics from a genuine vintage U.S. Patent filed in 1964! These shirts look awesome, fit well, are great conversation starters and an excellent gift for...

This unique t-shirt features Jetliner 777 Airplane schematics from a genuine vintage U.S. Patent filed in 1981! These shirts look awesome, fit well, are great conversation starters and an...

This unique t-shirt features F-20 Tigershark schematics from a genuine vintage U.S. Patent filed in 1986! These shirts look awesome, fit well, are great conversation starters and an excellent gift...

This unique t-shirt features Steamship schematics from a genuine vintage U.S. Patent filed in 1937! These shirts look awesome, fit well, are great conversation starters and an excellent gift for...

This unique t-shirt features Canoe schematics from a genuine vintage U.S. Patent filed in 1966! These shirts look awesome, fit well, are great conversation starters and an excellent gift for...

This unique t-shirt features Blacksmith Anvil schematics from a genuine vintage U.S. Patent filed in 1889! These shirts look awesome, fit well, are great conversation starters and an excellent...

This unique t-shirt features Transmission Tower schematics from a genuine vintage U.S. Patent filed in 1965! These shirts look awesome, fit well, are great conversation starters and an excellent...

This unique t-shirt features Snow Maker schematics from a genuine vintage U.S. Patent filed in 1954! These shirts look awesome, fit well, are great conversation starters and an excellent gift for...

This unique t-shirt features Propane Tank schematics from a genuine vintage U.S. Patent filed in 1971! These shirts look awesome, fit well, are great conversation starters and an excellent gift...