Combined radio receiver and perpetual calendar

Details Combined radio receiver and perpetual calendar Combined radio receiver and perpetual calendar

1976-01-23

1979-03-13

Stearman, Joel

Recording, communication, or information retrieval equipment

Computer, data processor equipment

D19 21, D19 25, D1403, D1903

Patent

active

D02512971

REFERENCES:
patent: D155798 (1949-11-01), Gaulke
patent: D161338 (1950-12-01), Hobby
patent: D227595 (1973-07-01), Katoh
patent: D241776 (1976-10-01), Bibl
patent: 2686985 (1954-08-01), Shore

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