Measuring – testing – or signalling instruments – Measuring – regulating or indicating instrument – or casing – Geometric
Patent
1983-04-25
1985-10-29
Ansher, Bernard
Measuring, testing, or signalling instruments
Measuring, regulating or indicating instrument, or casing
Geometric
Patent
active
D02811480
REFERENCES:
patent: D191581 (1961-10-01), Scharfenberg et al.
patent: D198913 (1964-08-01), Smith
patent: D233152 (1974-10-01), Knutson
patent: 3588795 (1971-06-01), Linardos et al.
patent: 4413518 (1983-11-01), Jones
Practical Electronics, 5/81, p. 48, Digisounder.
Powerboat & Fishing Instruments Buyers Guide, 1982, pp. 43-53, Depth Sounders.
Highstreet Rebecca A.
Jensen Nancy A.
Shield Raymond G.
Ansher Bernard
Pfeffer Terry
Signet Scientific Co.
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