Level

Details Level Level

1992-05-14

1993-04-06

Haroian, Harry N.

Geometrical instruments

Indicator of direction of force traversing natural media

With viewing aid

33379, G01C 932

Patent

active

051991772

ABSTRACT:
A lighted level including a frame having parallel working surfaces and an inner connecting web having an aperture with a pair of notches for supporting a liquid-containing vial. The level includes a light emitting diode for illuminating the vial. The level is constructed for automatic drop-in assembly of each of the component parts, including a printed circuit board containing the lighting circuitry, without requiring wires, screws, pins, pegs or bolts.

REFERENCES:
patent: 1172971 (1916-02-01), Frank, Sr.
patent: 2198945 (1940-04-01), Morris
patent: 2305678 (1942-12-01), Cravaritis et al.
patent: 2367858 (1945-01-01), Flynn
patent: 2695949 (1954-11-01), Ashwill
patent: 2790069 (1957-04-01), Alexander
patent: 2825144 (1958-03-01), Warden, Sr. et al.
patent: 2944144 (1960-07-01), Naylor
patent: 3046672 (1962-07-01), Lace
patent: 3172212 (1965-03-01), Pappas
patent: 3442024 (1969-05-01), Don
patent: 3584212 (1971-06-01), Hansen
patent: 3738015 (1973-06-01), De Jong
patent: 3835549 (1974-09-01), De Jong et al.
patent: 3871110 (1975-03-01), Gutowski et al.
patent: 3878618 (1975-04-01), Freeman
patent: 4003134 (1977-01-01), Adams
patent: 4208803 (1980-06-01), Brown et al.
patent: 4392184 (1983-07-01), Hearold et al.
patent: 4407075 (1983-10-01), MacDermott
patent: 4484393 (1984-11-01), LaFreniere
patent: 4625423 (1986-12-01), Sackett
patent: 4833788 (1989-05-01), Munro
patent: 4876798 (1989-10-01), Zimmerman
patent: 4979310 (1990-12-01), Wright

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