Drafting parallel

Details Drafting parallel Drafting parallel

1977-11-21

1980-02-26

Stearman, Joel

Office supplies; artists and teachers materials

Equipment for writing, drawing, or for fine arts

D1906

Patent

active

D02543133

REFERENCES:
patent: 2234467 (1941-03-01), De Lisle
Post Professional Drafting Rm. Eq. Cat., 1969, p. 78, Item #1704.

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