Drafting instrument

Details Drafting instrument Drafting instrument

1979-11-19

1982-01-26

Phillips, Charles E.

Geometrical instruments

Scriber

B43L 1300

Patent

active

043121306

ABSTRACT:
A holder for modern drafting pens is described consisting of a grasping handle and platform supported at three points, two of the supports being friction glide feet and the third point being the end tip itself which is connected to the platform via an adaptor plate containing a threaded hole which engages the threads on the barrel of the pen.

REFERENCES:
patent: 556302 (1896-03-01), Carver et al.
patent: 2362992 (1944-11-01), Dentzler
patent: 2735178 (1956-02-01), Adams
patent: 2748474 (1956-06-01), Brown
patent: 2810960 (1957-10-01), Johnson et al.
patent: 2934452 (1946-02-01), Howard
patent: 3089246 (1963-05-01), Riepe
patent: 3094784 (1963-06-01), Van Dyke
patent: 3396469 (1968-08-01), Brott
patent: 3853411 (1974-12-01), Cirado

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