74327876
Nov 2, 1992
Nov 30, 1993
optical lenses and lens systems composed of lenses, filters, housings, mounts, azimuth and elevation platforms, optical tracking devices, range extenders, image intensifiers, reticle printers, reticle projectors, motion-picture cameras, video cameras, still cameras, feedback focus potentiometers, feedback zoom potentiometers, and remote-control devices to adjust lenses, mounts, tracking devices, and cameras
Electrical and Scientific Apparatus