The Schrader valve (also called American valve (AV)) is a type of pneumatic tire valve used on virtually every motor vehicle in the world today. The original Schrader valve design was invented in 1891 and patented in the United States in 1893.
The Schrader valve (also called American valve (AV)) is a type of pneumatic tire valve used on virtually every motor vehicle in the world today. The original Schrader valve design was invented in 1891 and patented in the United States in 1893.
Source: Wikipedia "Schrader valve" · CC BY-SA 4.0
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