Measuring – testing – or signalling instruments – Measuring – regulating or indicating instrument – or casing – Geometric
Patent
1980-12-17
1983-10-11
Holtje, Nelson C.
Measuring, testing, or signalling instruments
Measuring, regulating or indicating instrument, or casing
Geometric
D1007
Patent
active
D02709015
REFERENCES:
patent: D233443 (1974-10-01), Lee
patent: D257832 (1981-01-01), Flint
patent: 3754440 (1973-08-01), Edgerton
patent: 4251868 (1981-02-01), Aron
Flight International-2/10/79-p. 376-Navigation Device at top right.
Flight International-1/14/78 p. 107-Area Nav. System at top right.
Foster George B.
Gibbs Paul D.
Smyser Michael A.
Foster Airdata Systems Inc.
Holtje Nelson C.
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