Aviation symbols template

Details Aviation symbols template Aviation symbols template

1985-05-30

1988-08-16

Holtje, Nelson C.

Measuring, testing, or signalling instruments

Measuring, regulating or indicating instrument, or casing

Geometric

D10 65, D19 37, D19 40

Patent

active

D02972182

REFERENCES:
patent: D136655 (1943-11-01), Eilert
patent: D156686 (1950-01-01), Adams
patent: D163302 (1951-05-01), Martin
patent: D167453 (1952-08-01), Gallant
patent: D198391 (1964-06-01), Thomas
patent: D198392 (1964-06-01), Thomas
patent: D198393 (1964-06-01), Thomas
patent: D200664 (1965-03-01), Kellinger
patent: D204017 (1966-03-01), Goldman
patent: 3633286 (1962-01-01), Maurer
Art Brown Cat.-.COPYRGT.1973-p. 149-Template-2nd from bottom-left.

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