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This unique t-shirt features Oil Drilling Rig 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 miners, oil & gas workers and petroleum...

This unique t-shirt features Snow Mobile 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 engineers & mechanics! Product Type:...

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 sailors, navy veterans and maritime...

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

This unique t-shirt features Disc Golf Goal schematics from a genuine vintage U.S. Patent filed in 1977! These shirts look awesome, fit well, are great conversation starters and an excellent gift for disc golfers! Product Type: T-Shirt Design:...

This unique t-shirt features Nikola Tesla Circuit Controller schematics from a genuine vintage U.S. Patent filed in 1898! These shirts look awesome, fit well, are great conversation starters and an excellent gift for electricians, engineers & science...

This unique t-shirt features Bike Canteen schematics from a genuine vintage U.S. Patent filed in 1898! 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 Bowling Pin 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 bowling lovers, teammates and league...

This unique t-shirt features Floppy Disk 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 computer technicians, engineers and tech...

This unique t-shirt features Fountain Pen 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 writers, editors & literature...

This unique t-shirt features Bench Plane schematics from a genuine vintage U.S. Patent filed in 1915! These shirts look awesome, fit well, are great conversation starters and an excellent gift for constructor workers, contractors &...

This unique t-shirt features Slide Trombone 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 for musicians, band leaders and music...