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Method of determining the end point of a titration
(United States. Patent and Trademark Office, 1953-07-14)
Cotton stripper
(United States. Patent and Trademark Office, 1958-03-04)
Cotton picker rolls
(United States. Patent and Trademark Office, 1958-03-04)
Apparatus for removing solids from liquids in settling tanks and the like
(United States. Patent and Trademark Office, 1953-11-24)