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This unique t-shirt features Catamaran 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 outdoorsmen, sailors, navy veterans and water...

This unique t-shirt features Lawn Sprinkler schematics from a genuine vintage U.S. Patent filed in 1897! 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 Tap Dancing Shoe schematics from a genuine vintage U.S. Patent filed in 1938! These shirts look awesome, fit well, are great conversation starters and an excellent gift for ballet dancers & dance instructors! Product...

This unique t-shirt features Railroad Rail Joint schematics from a genuine vintage U.S. Patent filed in 1903! These shirts look awesome, fit well, are great conversation starters and an excellent gift for conductors, engineers & train...

This unique t-shirt features Radio Telescope 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 science teachers, engineering students,...

This unique t-shirt features Water Supply Tank schematics from a genuine vintage U.S. Patent filed in 1933! These shirts look awesome, fit well, are great conversation starters and an excellent gift for city planners, government employees and...

This unique t-shirt features Maple Syrup Tap schematics from a genuine vintage U.S. Patent filed in 1865! 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 Toilet schematics from a genuine vintage U.S. Patent filed in 1928! 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 Syrup Collection schematics from a genuine vintage U.S. Patent filed in 1959! 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 RC Slot Car schematics from a genuine vintage U.S. Patent filed in 1938! These shirts look awesome, fit well, are great conversation starters and an excellent gift for new parents & toy collectors! Product Type:...

This unique t-shirt features Video Card schematics from a genuine vintage U.S. Patent filed in 2001! 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 Dice schematics from a genuine vintage U.S. Patent filed in 1925! These shirts look awesome, fit well, are great conversation starters and an excellent gift for boardgame players & gaming enthusiasts! Product Type:...