Thermostat

Details Thermostat Thermostat

1989-04-10

1991-05-21

Holtje, Nelson C.

Measuring, testing, or signalling instruments

Measuring, regulating or indicating instrument, or casing

Regulator or control

Patent

active

D03169774

REFERENCES:
patent: D166538 (1952-04-01), Hughes et al.
patent: D172499 (1954-06-01), Greene
patent: D180598 (1957-07-01), Hughes, Jr. et al.
patent: D210803 (1968-04-01), Hill
patent: D228468 (1973-09-01), Wolfe
patent: D249476 (1973-09-01), Kolbow
patent: D254052 (1980-01-01), Wolfe
patent: D255103 (1980-05-01), Wolfe
patent: D256335 (1980-08-01), Pasquarette
patent: D256336 (1980-08-01), Odom et al.
patent: D270815 (1983-10-01), Odom
patent: D271086 (1983-10-01), Odom
patent: D288785 (1987-03-01), Levine
patent: 4264034 (1981-04-01), Hyltin et al.
patent: 4374541 (1983-02-01), Hoberman
patent: 4621336 (1986-11-01), Brown
Hardware Age, Quartz Thermostat, 1/1983, p. 57.
The Honeywell Spectrum, Various Thermostats, 10/1986, throughout the brochure.
Honeywell, Heat Pump Thermostats, cover, 6/1986.

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