Geometrical instruments – Indicator of direction of force traversing natural media – Level or plumb – terrestrial gravitation responsive
Patent
1986-04-18
1988-07-05
Haroian, Harry N.
Geometrical instruments
Indicator of direction of force traversing natural media
Level or plumb, terrestrial gravitation responsive
33 1H, 33375, 33390, 33341, 33355R, G01C 912
Patent
active
047545534
ABSTRACT:
A one-man field survey instrument for conducting small scale engineering surveys. The instrument automatically measures relative vertical and horizontal angles as it is moved over the terrain. The measurements are thereafter processed to prepare a topographical survey. Alternative configurations are disclosed as are methods for using the instrument.
REFERENCES:
patent: 231799 (1880-08-01), Hergenroder
patent: 1219430 (1917-03-01), Bjornstad
patent: 2691829 (1954-10-01), Arana
Haroian Harry N.
Killeen Joseph M.
Rogers, III L. Lawton
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