Surveying apparatus

Details Surveying apparatus Surveying apparatus

1989-05-17

1991-07-02

Will, Thomas B.

Geometrical instruments

Straight-line light ray type

Vertical and horizontal angle measurer

33293, G01C 102, G01C 1502

Patent

active

050275216

ABSTRACT:
A ground-based surveying system comprising components which can be utilized during the night time to determine ground contours and boundaries. The system utilizes a collimated beam of light to define the location of a reference point selected during a ground survey.

REFERENCES:
patent: 1105930 (1914-08-01), Scott
patent: 2656606 (1953-10-01), Porter
patent: 2990618 (1961-07-01), Petree et al.
patent: 3505739 (1970-04-01), Abrams
patent: 4343550 (1982-08-01), Buckley et al.
patent: 4644661 (1987-02-01), Bozzolato

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