Aperture grill for use in cathode ray tube and method for...

Aperture grill having additional slits preventing deformation of

Aperture grill material for color picture tube, production...

Aperture grill supporting frame and manufacturing method...

Aperture grille for a CRT having damping members arranged...

Aperture grille having parallel slits with larger...

Aperture grille structure for a cathode ray tube

Aperture mask supported by spring lugs and spring clips

Aperture mask supported by spring lugs and spring clips

Aperture mask unit for color television picture tube

Apparatus and method for terminating crosswires on a tension...

Apparatus for compensating convergence in a color cathode ray tu

Apparatus for displaying video images

Apparatus for forming an electron beam sheet

Apparatus for forming electron beams

Apparatus for generating multiple X-ray images of an object from

Apparatus for maintaining tension in a shadow mask

Apparatus for providing improved characteristics of a broad area

Apparatus for reducing deflection aberration in a CRT

Apparatus for reducing magnetic field radiated from deflection y