Penetration phosphors and display devices

Periodic electrostatically focused beam tubes

Periodic permanent magnet structures

Peripheral bodies for tension mask crt panel

Permanent magnet electron beam guidance systems

Permanent magnet ion trap and mass spectrometer using such a...

Permanent magnet structure for cross-field tubes

Permanent magnetic beam alignment apparatus for cathode ray...

Permanent magnetic focusing device for multi-cavity klystrons

Permanently magnetized ring mounted within the neck of a crt...

Perturbation of the mask aperture spacing for improved mask...

Phase shifted feedback electrometer

Phase shifted feedback electrometer for pulsed ion chamber

Phosphatic catalyst for the dehydrogenation of olefins and...

Phosphor and method of preparation thereof

Phosphor coating for gas discharge lamps

Phosphor composition and device

Phosphor composition for lamps

Phosphor composition for low-pressure gas discharge lamps

Phosphor distribution for helical compact fluorescent lamp