1 result for “Union Carbide Corporation”
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Patent · February 11, 1930 · page 6
Apparatus for Testing Brakes (US Patent 1,746,777, 1930)
In the document: …SEBASTIAN KARRER. ment in unison and having friction-wheels movable in and out of operation with the shafts of the testing-wheels, a tripping-lever engaging said connected levers to hold the friction-wheels normally out…