Sleepiness alarm

Details Sleepiness alarm Sleepiness alarm

1985-07-15

1988-03-08

Kemper, Catherine E.

Measuring, testing, or signalling instruments

Security or signal instrument or casing

Alarm or control thereof

D24 35, D10116

Patent

active

D02945622

REFERENCES:
patent: D251234 (1979-03-01), Hakansson et al.
patent: D273706 (1984-05-01), McCall
patent: 2910679 (1959-10-01), Baldwin
patent: 3045225 (1962-07-01), Baldwin
patent: 4272764 (1981-06-01), Herr et al.
patent: 4354179 (1982-10-01), Fourcade

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