Digital clock

Details Digital clock Digital clock

1979-03-22

1981-05-12

Holtje, Nelson C.

Measuring, testing, or signalling instruments

Clock or clock case

Changeable exhibitor, e.g., digital type

D10 26, D1001

Patent

active

D02591847

REFERENCES:
patent: D106039 (1937-09-01), Hentschel
patent: D129998 (1941-10-01), Lamothe
patent: D138747 (1944-09-01), Parker
patent: D142431 (1945-09-01), Lewis
patent: D158096 (1950-04-01), Kaufman
patent: D159931 (1950-08-01), Schlenker
patent: D201453 (1965-06-01), Shipley
patent: D242027 (1976-10-01), Terada
patent: D242905 (1977-01-01), Eschenfeldt
patent: 2069894 (1937-02-01), Mattman
patent: 4094082 (1978-06-01), Cannmozzo
Gifts & Dec. Access. 1/79-p. 178-clock @lower-right. _

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