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This unique t-shirt features Skateboard Truck schematics from a genuine vintage U.S. Patent filed in 1980! These shirts look awesome, fit well, are great conversation starters and an excellent...

This unique t-shirt features Nikola Tesla Coil For Electromagnets schematics from a genuine vintage U.S. Patent filed in 1894! These shirts look awesome, fit well, are great conversation starters...

This unique t-shirt features Fatboy Safety Razor schematics from a genuine vintage U.S. Patent filed in 1958! These shirts look awesome, fit well, are great conversation starters and an excellent...

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

This unique t-shirt features Automatic Pistol 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 Shotgun Shell 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 Multi-Tool schematics from a genuine vintage U.S. Patent filed in 2011! These shirts look awesome, fit well, are great conversation starters and an excellent gift for...

Oxytocin 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 Tunnel Boring schematics from a genuine vintage U.S. Patent filed in 1908! These shirts look awesome, fit well, are great conversation starters and an excellent gift...

This unique t-shirt features Draft Drink Tap schematics from a genuine vintage U.S. Patent filed in 1936! These shirts look awesome, fit well, are great conversation starters and an excellent gift...

This unique t-shirt features Toilet Plunger schematics from a genuine vintage U.S. Patent filed in 1988! These shirts look awesome, fit well, are great conversation starters and an excellent gift...

This unique t-shirt features Bass Clarinet 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 Microscope schematics from a genuine vintage U.S. Patent filed in 1948! These shirts look awesome, fit well, are great conversation starters and an excellent gift for...

This unique t-shirt features Hot Air Balloon schematics from a genuine vintage U.S. Patent filed in 1925! These shirts look awesome, fit well, are great conversation starters and an excellent gift...

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

This unique t-shirt features Baseball Field schematics from a genuine vintage U.S. Patent filed in 1887! These shirts look awesome, fit well, are great conversation starters and an excellent gift...

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

This unique t-shirt features Scuba Diving Tank schematics from a genuine vintage U.S. Patent filed in 1952! These shirts look awesome, fit well, are great conversation starters and an excellent...

This unique t-shirt features Rocket Nozzle schematics from a genuine vintage U.S. Patent filed in 1951! These shirts look awesome, fit well, are great conversation starters and an excellent gift...

This unique t-shirt features Astronaut Space Suit schematics from a genuine vintage U.S. Patent filed in 1973! These shirts look awesome, fit well, are great conversation starters and an excellent...