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This unique t-shirt features Rifle Silencer schematics from a genuine vintage U.S. Patent filed in 1970! These shirts look awesome, fit well, are great conversation starters and an excellent gift...

This unique t-shirt features Electron Microscope 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 Retro Ray Gun 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 Badminton Shuttlecock schematics from a genuine vintage U.S. Patent filed in 1936! These shirts look awesome, fit well, are great conversation starters and an...

LSD Molecule chemistry t-shirt. Printed on Gildan athletic fit cotton t-shirts. These shirts look awesome, fit well, are great conversation starters and an excellent gift for chemistry students,...

This unique t-shirt features Sewing Machine schematics from a genuine vintage U.S. Patent filed in 1922! These shirts look awesome, fit well, are great conversation starters and an excellent gift...

This unique t-shirt features Pocket Compass schematics from a genuine vintage U.S. Patent filed in 1902! These shirts look awesome, fit well, are great conversation starters and an excellent gift...

This unique t-shirt features Wontkins Puppet 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...

This unique t-shirt features Oil Well Pump Jack schematics from a genuine vintage U.S. Patent filed in 1985! These shirts look awesome, fit well, are great conversation starters and an excellent...

This unique t-shirt features Liquid Moderated Nuclear Reactor schematics from a genuine vintage U.S. Patent filed in 1963! These shirts look awesome, fit well, are great conversation starters and...

This unique t-shirt features Cello schematics from a genuine vintage U.S. Patent filed in 1890! These shirts look awesome, fit well, are great conversation starters and an excellent gift for...

This unique t-shirt features Log Cabin Toy schematics from a genuine vintage U.S. Patent filed in 1920! These shirts look awesome, fit well, are great conversation starters and an excellent gift...

This unique t-shirt features Submarine Boat schematics from a genuine vintage U.S. Patent filed in 1919! These shirts look awesome, fit well, are great conversation starters and an excellent gift...

This unique t-shirt features Catalytic Converter schematics from a genuine vintage U.S. Patent filed in 1962! These shirts look awesome, fit well, are great conversation starters and an excellent...

This unique t-shirt features WW2 Fighter Airplane schematics from a genuine vintage U.S. Patent filed in 1947! These shirts look awesome, fit well, are great conversation starters and an excellent...

This unique t-shirt features Navy Battle Ship schematics from a genuine vintage U.S. Patent filed in 1900! These shirts look awesome, fit well, are great conversation starters and an excellent...

This unique t-shirt features Clarinet schematics from a genuine vintage U.S. Patent filed in 1939! These shirts look awesome, fit well, are great conversation starters and an excellent gift for...

This unique t-shirt features Gyrocompass schematics from a genuine vintage U.S. Patent filed in 1929! These shirts look awesome, fit well, are great conversation starters and an excellent gift for...

This unique t-shirt features Windmill schematics from a genuine vintage U.S. Patent filed in 1906! These shirts look awesome, fit well, are great conversation starters and an excellent gift for...

This unique t-shirt features Enterprise Space Shuttle schematics from a genuine vintage U.S. Patent filed in 1975! These shirts look awesome, fit well, are great conversation starters and an...