Resnatron anode with cooling means
David H. Sloan
U.S. Patent 2,557,700. June 1951
Split anode magnetron with tuning ring
David H. Sloan
U.S. Patent 2,554,272. May 1951
Electronic tube apparatus embodying a cavity resonator
David H. Sloan
U.S. Patent 2,539,210. January 1951