1 result for “Ford Motor Company”
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Patent · June 25, 1957 · page 6
Method of making filter media (US Patent 2,797,163, 1957)
In the document: …essentially of a cationic resin. 2,588,794 5. Process in accordance with claim 3 wherein said diameter less than that of said inorganic vitreous mono- Ford'etal.------------ July 18, 1944 Kirkbride et al.---------- Jan. 10…