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Stair climbing cart 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • B62B-005/02
출원번호 US-0023975 (1979-03-26)
발명자 / 주소
  • Fouchey
  • Jr. Charles J. (1816 Michigan Blvd. Lincoln Park MI 48146)
인용정보 피인용 횟수 : 71  인용 특허 : 0

초록 ▼

A hand truck is disclosed including unique wheel assemblies for supporting the truck and permitting it to move heavy loads up and down a flight of stairs. Each assembly having three wheels mounted in an equilateral triangle configuration for providing mechanical advantage in moving a load upstairs a

대표청구항 ▼

A hand truck for supporting heavy loads comprising: an upright frame having a pair of laterally spaced side rails, each rail including a handle portion at one end and a foot portion at the other end, said foot portions being secured together by a cross-member to form a rest for supporting a load; a

이 특허를 인용한 특허 (71)

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