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This unique t-shirt features Metal Detector schematics from a genuine vintage U.S. Patent filed in 1972! These shirts look awesome, fit well, are great conversation starters and an excellent gift for surveyors, government employees, contractors &...

This unique t-shirt features 1880 Air Compressor schematics from a genuine vintage U.S. Patent filed in 1880! These shirts look awesome, fit well, are great conversation starters and an excellent gift for constructor workers, contractors &...

This unique t-shirt features 540R Guitar 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 musicians, guitar players, guitar teachers and band...

This unique t-shirt features Propane Tank schematics from a genuine vintage U.S. Patent filed in 1971! These shirts look awesome, fit well, are great conversation starters and an excellent gift for chefs, restaurant owners, kitchen workers & food...

This unique t-shirt features Fencing Foil schematics from a genuine vintage U.S. Patent filed in 1942! These shirts look awesome, fit well, are great conversation starters and an excellent gift for boxers, coaches & martial artists! Product Type:...

This unique t-shirt features Drum Coffee Roaster 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 baristas, cafe owners & coffee...

This unique t-shirt features Push Broom schematics from a genuine vintage U.S. Patent filed in 1880! These shirts look awesome, fit well, are great conversation starters and an excellent gift for janitors, housekeepers & custodial...

This unique t-shirt features Pop Up Sprinkler schematics from a genuine vintage U.S. Patent filed in 1926! These shirts look awesome, fit well, are great conversation starters and an excellent gift for gardeners & plant lovers! Product Type:...

This unique t-shirt features First Electric Guitar 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 musicians, guitar players, guitar teachers...

This unique t-shirt features Instant Camera schematics from a genuine vintage U.S. Patent filed in 1979! These shirts look awesome, fit well, are great conversation starters and an excellent gift for photographers & photography students! Product...

This unique t-shirt features Impulse Sprinkler schematics from a genuine vintage U.S. Patent filed in 1963! These shirts look awesome, fit well, are great conversation starters and an excellent gift for gardeners & plant lovers! Product Type:...

This unique t-shirt features Emergency Vehicle Lights 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 police & law enforcement...