Topographical surveying instrument

Details Topographical surveying instrument Topographical surveying instrument

1982-04-06

1984-07-17

Martin, Jr., William D.

Geometrical instruments

Straight-line light ray type

With straight edge instrument or chart

33 1H, 33275R, 33292, 33299, G01B 310, G01B 1100

Patent

active

044597584

ABSTRACT:
The present invention relates to a topographical surveying instrument, comprising:

REFERENCES:
patent: 1441153 (1923-01-01), Jefferson
patent: 2249226 (1941-07-01), Peters
patent: 2877555 (1959-03-01), Visockis
patent: 3302293 (1967-02-01), French
patent: 4274203 (1981-06-01), Vasile

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