Depth finder

Details Depth finder Depth finder

1986-01-27

1989-06-27

Holtje, Nelson C.

Measuring, testing, or signalling instruments

Measuring, regulating or indicating instrument, or casing

Food preparation type

D10 70

Patent

active

D03018415

REFERENCES:
patent: 3146440 (1964-08-01), Emerson
patent: 3267413 (1966-08-01), Beebe
patent: 3614720 (1971-10-01), Ludlum
patent: 3953824 (1976-04-01), Dean
patent: 3964012 (1976-06-01), Yamamoto
patent: 4644512 (1987-02-01), Grilk
Apelco FXL 400 Digital Color Flasher Instruction Manual-date unknown.
M.M.O.S. Inc. catalog-1984-p. 2-Aqua-Meter Depth Sounder at left-center.
Goldberg's Machine cat.-1980-p. 44-Color Flasher-Depth Finder, Item #F at center.

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