Compass

Details Compass Compass

1985-09-10

1988-08-09

Holtje, Nelson C.

Measuring, testing, or signalling instruments

Measuring, regulating or indicating instrument, or casing

Geometric

Patent

active

D02971275

REFERENCES:
patent: D227403 (1973-06-01), Yusa
patent: D228573 (1973-10-01), Yusa
patent: D230883 (1974-03-01), Brigham
patent: D236092 (1975-07-01), Macowski
patent: 1922864 (1933-08-01), Rhea
patent: 1925863 (1933-09-01), Crocker
patent: 1982405 (1934-11-01), Titterington
patent: 1987624 (1935-01-01), Jones
patent: 2155712 (1939-04-01), Hull
patent: 3334420 (1967-08-01), Stockton
patent: 3481045 (1969-12-01), White
patent: 3732560 (1973-05-01), Harden
patent: 3832787 (1974-09-01), Fowler
patent: 3949483 (1976-04-01), White
patent: 4217625 (1980-08-01), Klein
patent: 4359823 (1982-11-01), White
Goldberg's Marine catalog-1969, pp. 8-9, compasses.

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