Four way corner level

Details Four way corner level Four way corner level

1978-03-13

1979-09-25

Phillips, Charles E.

Geometrical instruments

Indicator of direction of force traversing natural media

Level or plumb, terrestrial gravitation responsive

33347, G01C 934

Patent

active

041685784

ABSTRACT:
A four way corner level is provided with a first run, a second run extending perpendicular to the first run, and a third run terminating in a handle member extending from the external apex of the first and second runs. Vertical and horizontal level means are provided on the external sides of the first and second runs and magnetic attaching means may be provided on the internal sides of the first and second runs.

REFERENCES:
patent: 1644456 (1927-10-01), Winter
patent: 2624953 (1953-01-01), Newcomb
patent: 3028679 (1962-04-01), Christy
patent: 3545091 (1970-12-01), Sebastiani
patent: 3820249 (1974-06-01), Stone
patent: 3859002 (1975-01-01), Sauey

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