Self-holding and self-leveling device for survey range pole...

Geometrical instruments – Straight-line light ray type – Rod or target

Reexamination Certificate

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C033S333000, C033S392000, C033S404000

Reexamination Certificate

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06874239

ABSTRACT:
An apparatus used with a range pole and survey instruments for leveling and setting elevations and a method of use of the apparatus. A frame holds a range pole, on an embed plate, without assistance of a surveyor's assistant while a surveyor communicates with an iron worker to effect elevation adjustments of the embed plate.

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patent: 6345794 (2002-02-01), Varner

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