Electronic level

Details Electronic level Electronic level

1987-07-30

1989-05-09

Haroian, Harry N.

Geometrical instruments

Indicator of direction of force traversing natural media

Level or plumb, terrestrial gravitation responsive

33391, 33396, G01C 906

Patent

active

048276243

ABSTRACT:
An electronic level for determining the angular orientation of a structure, where the error angle between actual and desired angular orientation of the structure is indicated by a variable signal perceptible to the user.

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patent: 4571844 (1986-02-01), Komasaku et al.
patent: 4592147 (1986-06-01), Herman

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