Surveying rod

Details Surveying rod Surveying rod

1976-03-02

1977-12-06

Stephan, Steven L.

Geometrical instruments

Straight-line light ray type

Rod or target

G01C 1506

Patent

active

040609090

ABSTRACT:
A telescoping surveying rod is disclosed having an adjustable support member to permit direct reading from a reference elevation such as zero elevation or from a one hundred foot elevation when the rod is used as a standard rod for elevation or for excavation; the rod includes dual scales lineated for tenths of a foot and for inches to permit direct reading of either without necessitating any conversion.

REFERENCES:
patent: 861929 (1907-07-01), Wulff
patent: 894955 (1908-08-01), Jones
patent: 1220358 (1917-03-01), Martin
patent: 1450360 (1923-04-01), Effertz
patent: 2818653 (1958-01-01), Henderson

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