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[미국특허] Display sign 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • G08B-027/00
  • G09F-019/12
출원번호 US-0831661 (1992-02-07)
우선권정보 CA-0563009 (1988-03-31)
발명자 / 주소
  • Dimmick Frederick (R.R. No. 3 Parry Sound
  • Ontario
  • P2A 2W9 CAX)
출원인 / 주소
  • Dimmick
  • Frederick (Parry Sound CAX 05)
인용정보 피인용 횟수 : 183  인용 특허 : 0

초록

A sign comprising at least one light pipe, each light pipe made of light-transmitting material, said at least one light pipe arranged to form a predetermined message or design, each light pipe having at least two ends and carrying at least one light source proximate at least one end, each light sour

대표청구항

For use as a light source in a sign a light pipe having at least two ends of a suitable material of substantially uniform index of refraction, having a longitudinal axis of extension, and carrying at least one light source being a light emitting diode proximate at least one end wherein the at least

이 특허를 인용한 특허 (183) 인용/피인용 타임라인 분석

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