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All Patents in class 205/219
Patents 1 - 3 of 3
First set of recordsLast set of records
NumberDatePatenteeTitleType
1,775,671Sep. 16, 1930T.E. DunnElectrolytic Method of Cleaning Metal
1,898,765Feb. 21, 1933T.E. DunnElectrocleaning Process
1,954,473Apr. 10, 1934T.E. DunnElectrochemical Process for Removing Scale and Oxide from the Surface of Stainless Steel
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