Warfield, John2008-07-112008-07-111969-04-08Warfield, J. N. U.S. Patent #3,437,937, 1969https://hdl.handle.net/1920/3164Manuscript: typescript with figures, 5 pgs., 8.5" x 11" (21.6 cm x 29.7 cm)Warfield's patent for Digital Squelch System. Includes schematic and summary narrative. He signed over the patent rights to his employer Wilcox Electric Co., of Kansas City, MO. The original application was filed August 8, 1966 with the Patent Lawyers Hovey, Johnson & Hovey. John N. Warfield Collection 16.11en-USWarfield, John N.Digital squelch systemWilcox Electric CompanyGovernment document