Multi-function drafting instrument

Details Multi-function drafting instrument Multi-function drafting instrument

1995-01-24

1996-03-12

Will, Thomas B.

Geometrical instruments

Scriber

Curved line

33 42, 33 44, 33476, 33481, B43L 904, G01B 304

Patent

active

054975581

ABSTRACT:
A drafting instrument is disclosed that functions as a protractor, compass, T-square and ruler. The instrument is especially adaptable for use on dry erase boards, chalkboards and tables Apertures disposed in the ruler portion of the instrument accommodate pen tips and facilitate the drawing of arcs, circles and parallel lines. The preferred embodiment of the instrument is two-piece with a uni-body instrument and a suction cup pivotally attached to the underside thereof.

REFERENCES:
patent: D166905 (1952-06-01), Coates
patent: 663168 (1900-12-01), Hembree
patent: 799474 (1905-09-01), Larson et al.
patent: 1266010 (1918-05-01), Golden
patent: 1266845 (1918-05-01), Morin
patent: 1447207 (1923-03-01), Golden
patent: 2104515 (1938-01-01), Golden
patent: 2581839 (1952-01-01), Douglas
patent: 3089245 (1963-05-01), Cromer et al.
patent: 3474538 (1969-10-01), Kirkegaard
patent: 3881253 (1975-05-01), Haws

Affiliated with

Also associated with

Rating

Multi-function drafting instrument does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Multi-function drafting instrument, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multi-function drafting instrument will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2092876