Thermostat magnifier

Details Thermostat magnifier Thermostat magnifier

1986-08-25

1987-09-15

Zarfas, Louis S.

Photography and optical equipment

Optical article not elsewhere specified

Lens or objective

Patent

active

D02918951

REFERENCES:
patent: D99267 (1936-04-01), Clark
patent: D136848 (1943-12-01), Dreyfuss
patent: D142543 (1945-10-01), Bechtell
patent: D176657 (1956-01-01), Dreyfuss
patent: D179644 (1957-02-01), Haven
patent: D180443 (1957-06-01), Dreyfuss
patent: D189498 (1960-12-01), Collins
patent: D190050 (1961-04-01), Duncan
patent: D215245 (1969-09-01), Schwab
patent: D217500 (1970-05-01), O'Connell
patent: D248838 (1978-08-01), Pasquarette et al.
patent: D276731 (1984-12-01), Steiner
patent: 1860986 (1932-05-01), Boyce
patent: 2312542 (1943-03-01), Goodman
patent: 2533628 (1950-12-01), Rosenberg
"Rapkin" publication--Unbreakable Magnifiers.
Honeywell--"Super Tradeline", 9-1981.

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