H - Electricity – 01 – J
Patent
H - Electricity
01
J
316/12, 313/35.1
H01J 29/07 (2006.01) H01J 9/14 (2006.01) H01J 9/20 (2006.01)
Patent
CA 1175876
TELEVISION PICTURE TUBES AND HOLE TECHNOLOGY Abstract An article and a method of making a line of sight opening in an article wherein the line of sight opening in the article is partially defined by material on one surface of the article and partially defined by material on the opposite surface of the article and an application of the hole technology comprising a television tube having an electron gun and an aperture mask with a plurality of line of sight openings in the aperture mask wherein the line of sight openings in the aperture mask are partially defined by material on the cone side surface of the aperture mask and partially defined by material on the grade side surface of the aperture mask with the aperture mask located in the television tube with the cone side of the aperture mask facing the electron guns.
376484
Ade & Company
Buckbee-Mears Company
LandOfFree
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