Geometrical instruments – Scriber – Curved line
Patent
1995-01-05
1996-08-20
Cuchlinski, Jr., William A.
Geometrical instruments
Scriber
Curved line
G01B 316
Patent
active
055466630
ABSTRACT:
FIG. 1 shows a drawing instrument which is in chain dotted lines except for a lower portion of one leg of the instrument. The leg is formed generally of plastics and has a metal end piece provided with a non-needle-like or squat conical tip or point which extends from a circular base.
REFERENCES:
patent: 473244 (1892-04-01), Smith
patent: 662291 (1900-11-01), Nye
patent: 719381 (1903-01-01), Seymour
patent: 2809437 (1957-10-01), Kuzma
patent: 5090127 (1992-02-01), Shapiro et al.
Bennett G. Bradley
Cuchlinski Jr. William A.
Helix Limited
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