Talking clock

Details Talking clock Talking clock

1994-12-29

1996-01-02

Holtje, Nelson C.

Measuring, testing, or signalling instruments

Clock or clock case

Simulative

D10 6, D10 7

Patent

active

D03657647

REFERENCES:
patent: D40663 (1910-04-01), Pease
patent: D143538 (1946-01-01), Lerman
patent: D168521 (1952-12-01), Rudanet
patent: D191712 (1961-11-01), Wert
patent: D219933 (1971-02-01), De Zinno
patent: D240210 (1976-06-01), Buckingham
patent: D253693 (1979-12-01), Guyll
patent: 4671669 (1987-06-01), Graves

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