Patents - 1951

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