Telescoping level

Details Telescoping level Telescoping level

1992-12-24

1993-10-05

Will, Thomas B.

Geometrical instruments

Indicator of direction of force traversing natural media

Level or plumb, terrestrial gravitation responsive

33451, G01C 928

Patent

active

052493652

ABSTRACT:
A level includes a plurality of telescoping members locked in a telescoped position, whereby the effective length of the level is adjustable so that the level is useful in establishing horizontal for a structure of an extended length and for establishing a plumb line.

REFERENCES:
patent: 686360 (1901-11-01), Smiddy et al.
patent: 1413056 (1922-04-01), Parrish et al.
patent: 2356544 (1944-08-01), Swanson
patent: 2551524 (1951-05-01), Bullivant
patent: 3104477 (1963-09-01), Edwill
patent: 4099331 (1978-07-01), Peterson et al.
patent: 4130943 (1978-12-01), Talbot
patent: 4186493 (1980-02-01), Khan et al.
patent: 4399616 (1983-08-01), Jansson
patent: 4894925 (1990-02-01), Langmaid

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