1 result for “Union Carbide Corporation”
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Patent · January 4, 1927 · page 5
Brake Testing Machine (US Patent 1,612,928, 1927)
In the document: …brakes do not apply simultaneously and 3. In abydevice of the character described, in unison and one of the brakes exerts a a pair of independent rollers, a slide bar, greater braking action than the other…