INFORMATION ON THE PATENT ISSUED APRIL 8, 1969. There are three pages in the file. Page 1 is a figure sheet, reproducing figures 1,2,3., with the heading: "J.N. Warfield, Digital Squelch System, Filed Aug. 8, 1966" Page 1 also shows the patent Number 3,437,937, and date April 8, 1969. In addition to the Page 1 figure page, there are Pages 2 and 3, two printed pages, printed on both sides, describing the patent. IMFORMATION ON THE APPLICATION, FILED 8 AUGUST 1966 Patent Lawyers Hovey, Schmidt, Johnson & Hovey, Federal Reserve Bank Bldg., Kansas City, Missouri 64106 filed the application, on behalf of Warfield. The letter for application Docket #12080 was filed 8 August 1966. It is 10 numbered typed pages, plus five unnumbered pages on which are listed 12 numbered "claims" identifying the parts of the invention, plus 1 figure pages, plus copy of a two-page document in which John Warfield signed over patent rights to his employer in whose company the invention work was done - Wilcox Electric Co., of Kansas City, Mo. Also in the file: correspondence relative to this patent. Also in the file: A photocopy of a newsletter Official Gazette, dated 8 April1969, page 636, showing the patent granted, Number 3,437,937.