Multiple line drawing instrument

Details Multiple line drawing instrument Multiple line drawing instrument

1988-03-31

1989-03-28

Haroian, Harry N.

Geometrical instruments

Scriber

Parallel line

33 181, B43L 1302

Patent

active

048152129

ABSTRACT:
An instrument for use in preparing an accident report concerning an automotive vehicle is constructed to draw four continuous lines in a manner simulating the paths of the wheels of the vehicle. The instrument has a housing which confines four independently spring-loaded leads in a rectangular array. The leads are slidably held by an alignment plate which is threadably connected to the top of the housing.

REFERENCES:
patent: D116018 (1939-08-01), Cathcard
patent: 417231 (1889-12-01), Cole
patent: 891692 (1908-06-01), Hayden
patent: 1093606 (1914-04-01), Cooley
patent: 1191725 (1916-07-01), Paulsen
patent: 1564721 (1925-12-01), Tallon
patent: 1731395 (1929-10-01), Radtke
patent: 2394452 (1946-02-01), Howard
patent: 2744329 (1956-05-01), Way et al.
patent: 3762054 (1973-10-01), Ballard

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