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This unique t-shirt features Rocket Engine Cooling schematics from a genuine vintage U.S. Patent filed in 1973! These shirts look awesome, fit well, are great conversation starters and an excellent gift for science teachers, engineers & rocketry...

This unique t-shirt features Steam Rocket 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 science teachers, engineers & rocketry...

This unique t-shirt features Rocket 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 science teachers, engineers & rocketry...

This unique t-shirt features Vintage Camera 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 photographers & photography students! Product...

This unique t-shirt features Hockey Stick 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 for hockey players, coaches and hockey moms &...

This unique t-shirt features Trumpet 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 musicians, band leaders and music teachers! Product...

This unique t-shirt features Tommy Gun 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 for soldiers, military veterans & law enforcement...

This unique t-shirt features Eckdahl Computer schematics from a genuine vintage U.S. Patent filed in 1960! 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 Camera Film schematics from a genuine vintage U.S. Patent filed in 1937! These shirts look awesome, fit well, are great conversation starters and an excellent gift for photographers & photography students! Product...

This unique t-shirt features Football 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 football players, coaches and football moms &...

This unique t-shirt features Pool Vacuum schematics from a genuine vintage U.S. Patent filed in 1967! These shirts look awesome, fit well, are great conversation starters and an excellent gift for scuba divers & snorkeling enthusiasts! Product...

This unique t-shirt features M16 Rifle schematics from a genuine vintage U.S. Patent filed in 1966! These shirts look awesome, fit well, are great conversation starters and an excellent gift for hunters, military veterans & law enforcement...