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This unique t-shirt features Carburetor schematics from a genuine vintage U.S. Patent filed in 1916! These shirts look awesome, fit well, are great conversation starters and an excellent gift for auto mechanics, repair shop owners & automotive...

This unique t-shirt features Lighthouse schematics from a genuine vintage U.S. Patent filed in 1931! 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 Langstroth Beehive schematics from a genuine vintage U.S. Patent filed in 1885! These shirts look awesome, fit well, are great conversation starters and an excellent gift for farmers & ranch workers! Product Type:...

This unique t-shirt features Nikola Tesla Dynamo Electric Machine 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 for electricians, engineers &...

This unique t-shirt features Bassoon schematics from a genuine vintage U.S. Patent filed in 1964! 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 Intake Manifold schematics from a genuine vintage U.S. Patent filed in 1927! These shirts look awesome, fit well, are great conversation starters and an excellent gift for auto mechanics, repair shop owners & automotive...

This unique t-shirt features Electra 10E Airplane schematics from a genuine vintage U.S. Patent filed in 1934! These shirts look awesome, fit well, are great conversation starters and an excellent gift for pilots, flight instructors, engineers,...

This unique t-shirt features Mechanical Keyboard Switch schematics from a genuine vintage U.S. Patent filed in 1986! These shirts look awesome, fit well, are great conversation starters and an excellent gift for computer technicians, engineers and...

This unique t-shirt features Pinball Ball Release Gate schematics from a genuine vintage U.S. Patent filed in 1949! These shirts look awesome, fit well, are great conversation starters and an excellent gift for pinball players & retro arcade...

This unique t-shirt features Auto 5 Shotgun schematics from a genuine vintage U.S. Patent filed in 1900! These shirts look awesome, fit well, are great conversation starters and an excellent gift for hunters, military veterans & law enforcement...

This unique t-shirt features Nikola Tesla Magnetic Motor schematics from a genuine vintage U.S. Patent filed in 1891! These shirts look awesome, fit well, are great conversation starters and an excellent gift for electricians, engineers & science...

This unique t-shirt features Nikola Tesla Electricity Transmitter schematics from a genuine vintage U.S. Patent filed in 1914! These shirts look awesome, fit well, are great conversation starters and an excellent gift for electricians, engineers &...