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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 for electricians, engineers & science...

This unique t-shirt features Urinal Bowl schematics from a genuine vintage U.S. Patent filed in 1893! These shirts look awesome, fit well, are great conversation starters and an excellent gift for new home owners, contractors & interior...

This unique t-shirt features Mechanical Pocket Watch schematics from a genuine vintage U.S. Patent filed in 1910! These shirts look awesome, fit well, are great conversation starters and an excellent gift for sailors, navy veterans and maritime...

This unique t-shirt features Pinball Bumper schematics from a genuine vintage U.S. Patent filed in 1950! These shirts look awesome, fit well, are great conversation starters and an excellent gift for pinball players & retro arcade lovers! Product...

This unique t-shirt features Coaster Bike 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 for bike riders & cycling enthusiasts! Product Type:...

This unique t-shirt features Oil Platform schematics from a genuine vintage U.S. Patent filed in 1956! These shirts look awesome, fit well, are great conversation starters and an excellent gift for miners, oil & gas workers and petroleum...

This unique t-shirt features Whiskey Barrel schematics from a genuine vintage U.S. Patent filed in 1962! These shirts look awesome, fit well, are great conversation starters and an excellent gift for wine connoisseurs, bar owners & beer...

This unique t-shirt features Bagpipe schematics from a genuine vintage U.S. Patent filed in 1941! These shirts look awesome, fit well, are great conversation starters and an excellent gift for musicians, band leaders and music teachers! Product...

This unique t-shirt features Underwater Welders Helmet schematics from a genuine vintage U.S. Patent filed in 1950! These shirts look awesome, fit well, are great conversation starters and an excellent gift for welders, construction workers &...

This unique t-shirt features Hydrogen Fuel Cell 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 for science teachers, engineering students,...

This unique t-shirt features Vacuum Tube 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 computer technicians, engineers and tech...

This unique t-shirt features Elevator Emergency Brake 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 carpenters, handymen & construction...