US patent 3413573, Nathanson et al, "Microelectronic frequency selective apparatus with vibratory member and means responsive thereto", issued 1968-11-26
US patent 3590343, Nathanson et al, "Resonant gate transistor with fixed position electronically floating gate electrode in addition to resonant member", issued 1971-6-29
US patent 3746911, Nathanson et al, "Electrostatically deflectable light valves for projection displays", issued 1973-7-17
