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특허 상세정보

Protractor bubble level

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) G01C-009/28   
미국특허분류(USC) 33/347 ; 33/370 ; 33/371 ; 33/373
출원번호 US-0595303 (1990-10-10)
발명자 / 주소
인용정보 피인용 횟수 : 100  인용 특허 : 0
초록

The present invention relates to an improved leveling device for use with various tools or other objects during a construction or repair process. A bubble level is mounted along the straight edge of a semi-circular protractor. The protractor is movably connected to a base member and adapted to pivot thereon relative to a central axis extending through the base member. A detent mechanism is provided within the base member for maintaining the protractor at various angular settings. The base member is also adapted to rotate about the central axis and may be...

대표
청구항

An adjustable protractor bubble level comprising: a protractor portion having angular graduations thereon; an elongate bubble level rigidly mounted to said protractor portion. a base member defining a central axis extending therethrough, said base member comprising: (a) a protractor securing portion, said protractor portion being pivotally mounted to said securing portion; (b) a mounting portion having a generally planar lower surface; and (c) a snap connector for rotatably and releasably attaching said mounting portion to said securing portion in a mann...

이 특허를 인용한 특허 피인용횟수: 100

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