Search Results for: Monochrome cathode ray television picture tubes
(class / ) induction or dielectric heating (class / ) resistance heating (class / ) electromagnetic or particulate radiation utilized (e.g., ir, uv, x-ray, gamma ray, actinic, microwave, radio wave, atomic particle; i.e., alpha ray, beta ray, electron, etc.)
(class / ) magnetic field or force utilized (class / ) sonic or ultrasonic (class / ) electrical product produced (class / ) welding electrode (class / ) superconductor (class / ) fluorescent or phosphorescent base coating (e.g., cathode-ray tube, luminescent screen, etc.)...
https://patents.justia.com/patents-by-us-classification/427