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This unique t-shirt features 3D Printer 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 for...

This unique t-shirt features Potters Wheel 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...

CBD 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 F-23 Fighter Jet schematics from a genuine vintage U.S. Patent filed in 1992! These shirts look awesome, fit well, are great conversation starters and an excellent...

This unique t-shirt features GPS Satellite 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 Metal Detector schematics from a genuine vintage U.S. Patent filed in 1972! These shirts look awesome, fit well, are great conversation starters and an excellent gift...

This unique t-shirt features 540R Guitar schematics from a genuine vintage U.S. Patent filed in 1997! These shirts look awesome, fit well, are great conversation starters and an excellent gift for...

This unique t-shirt features Fencing Foil schematics from a genuine vintage U.S. Patent filed in 1942! These shirts look awesome, fit well, are great conversation starters and an excellent gift...

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

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

This unique t-shirt features Catamaran 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 for...

This unique t-shirt features Tap Dancing Shoe schematics from a genuine vintage U.S. Patent filed in 1938! These shirts look awesome, fit well, are great conversation starters and an excellent...

This unique t-shirt features Maple Syrup Tap schematics from a genuine vintage U.S. Patent filed in 1865! These shirts look awesome, fit well, are great conversation starters and an excellent gift...

This unique t-shirt features RC Slot Car schematics from a genuine vintage U.S. Patent filed in 1938! These shirts look awesome, fit well, are great conversation starters and an excellent gift for...

This unique t-shirt features Pocket Watch schematics from a genuine vintage U.S. Patent filed in 1913! These shirts look awesome, fit well, are great conversation starters and an excellent gift...

This unique t-shirt features Oliver Tractor schematics from a genuine vintage U.S. Patent filed in 1935! These shirts look awesome, fit well, are great conversation starters and an excellent gift...

This unique t-shirt features Oil Well Drill Bit schematics from a genuine vintage U.S. Patent filed in 1943! These shirts look awesome, fit well, are great conversation starters and an excellent...

This unique t-shirt features Gold Sluice Box schematics from a genuine vintage U.S. Patent filed in 1881! These shirts look awesome, fit well, are great conversation starters and an excellent gift...

This unique t-shirt features Mine Car schematics from a genuine vintage U.S. Patent filed in 1903! These shirts look awesome, fit well, are great conversation starters and an excellent gift for...

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