The General Motors Catalytic Converter

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“…The Houdry catalyst was tested by General Motors in the General Motors Catalytic Converter and results were published by Homfeld, Johnson, and Kolbe. 2 The converter was a long stainless steel box, 38 x IOV2 x 2.9 in. It weighed 39.5 lb of which 13.5 lb was catalyst.…”