Calendar clock

Details Calendar clock Calendar clock

1979-02-05

1981-08-25

Holtje, Nelson C.

Measuring, testing, or signalling instruments

Clock or clock case

Combined

D1001

Patent

active

D02603748

REFERENCES:
patent: D3064 (1868-06-01), Owens
patent: D84754 (1931-07-01), Richardson
patent: D89122 (1933-01-01), Canepa
patent: D89743 (1933-05-01), Bourquin
Seth Thomas Clocks cat. #411, 1886-1887, pp. 90 & 93, calendar clocks.
E. Ingraham & Co. cat. #22, 1884, p. 43, calendar clock.
Seth Thomas Clocks cat., Feb. 1, 1867, pp. 57 & 61, calendar clocks.

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