Analog delay line (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Analog delay line" in English language version.

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du.edu (Global: 9,263^rd place; English: 6,521^st place)

J. B. Calvert (13 January 2002). "Analog Delay Devices". Retrieved 28 January 2012.

Francis A. Hubbard, System for Determining the Direction of Propagation of Wave Energy, U.S. patent 1,641,432, Granted Sept. 6, 1927.
Gereld L. Tawney, Electrical Time Delay Line, U.S. patent 2,390,563, Granted Dec. 11, 1945.
Robert C. Mathes, Wave Transmission System, U.S. patent 1,696,315, granted Dec. 25, 1928.
William S. Percival, Delay Device for use in Transmission of Oscillations, U.S. patent 2,263,902, Nov. 25, 1941.
Laurens Hammond, Electrical Musical Instrument, U.S. patent 2,230,836, granted Feb. 4, 1941.
Clarence W. Hansell, Method and Means for Reducing Multiple Signals, U.S. patent 2,310,692, granted Feb. 9, 1943.
Richard B. Nelson, Artificial Transmission Line, U.S. patent 2,420,559, granted May 13, 1947.
John H. Rubel and Roy E. Troell, Adjustable Delay Line, U.S. patent 2,467,857, Granted Apr. 19, 1949.
Madison G. Nicholson Jr., Time Delay Apparatus, U.S. patent 2,401,094, granted May 28, 1946.
Gordon D. Forbes and Herbert Shapiro, Transmission Line, U.S. patent 2,423,306, granted July 1, 1947.
David L. Arenberg, Delay Means, U.S. patent 2,512,130, granted June 20, 1950.
David L. Arlenberg, Compressional Wave Delay Means, U.S. patent 2,505,515, granted Apr. 25, 1950.
David L. Arenberg, Solid Delay Line, U.S. patent 2,624,804, granted Jan. 6, 1953.