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- Q5529892 subject Q449970.
- Q5529892 subject Q7214258.
- Q5529892 subject Q8237696.
- Q5529892 abstract "The Geer tube was an early single-tube color television cathode ray tube, developed by Willard Geer. The Geer tube used a pattern of small phosphor-covered three-sided pyramids on the inside of the CRT faceplate to mix separate red, green and blue signals from three electron guns. The Geer tube had a number of disadvantages, and was never used commercially due to the much better images generated by RCA's shadow mask system. Nevertheless, Geer's patent was awarded first, and RCA purchased an option on it in case their own developments didn't pan out.".
- Q5529892 wikiPageExternalLink patents?id=11NKAAAAEBAJ.
- Q5529892 wikiPageExternalLink patents?id=QAZZAAAAEBAJ.
- Q5529892 wikiPageExternalLink patents?id=UvtnAAAAEBAJ.
- Q5529892 wikiPageExternalLink patents?id=_2VEAAAAEBAJ.
- Q5529892 wikiPageExternalLink Law028.pdf.
- Q5529892 wikiPageExternalLink 0,9171,858780,00.html.
- Q5529892 wikiPageWikiLink Q1087616.
- Q5529892 wikiPageWikiLink Q1128174.
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- Q5529892 wikiPageWikiLink Q449970.
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- Q5529892 wikiPageWikiLink Q5446863.
- Q5529892 wikiPageWikiLink Q604924.
- Q5529892 wikiPageWikiLink Q674564.
- Q5529892 wikiPageWikiLink Q7214258.
- Q5529892 wikiPageWikiLink Q773087.
- Q5529892 wikiPageWikiLink Q8237696.
- Q5529892 wikiPageWikiLink Q83341.
- Q5529892 wikiPageWikiLink Q83913.
- Q5529892 wikiPageWikiLink Q849194.
- Q5529892 comment "The Geer tube was an early single-tube color television cathode ray tube, developed by Willard Geer. The Geer tube used a pattern of small phosphor-covered three-sided pyramids on the inside of the CRT faceplate to mix separate red, green and blue signals from three electron guns. The Geer tube had a number of disadvantages, and was never used commercially due to the much better images generated by RCA's shadow mask system.".
- Q5529892 label "Geer tube".