Leveling pole

Geometrical instruments – Area integrators – Electrical

Patent

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Details

G01B 308

Patent

active

043182283

ABSTRACT:
A leveling pole comprising elliptic liners that stay immovable radially to each other and, when fully extended, form a wide-angle surface area in the axial direction to provide same-size graduations marked through the full length of the pole. The invention further involves a double engagement made by a locking button to selectively regulate the telescopical slide of each liner thereby to provide a desired measuring standard.

REFERENCES:
patent: 1299627 (1919-04-01), Simon
patent: 3239255 (1966-03-01), Murcott
patent: 3526040 (1970-09-01), Young

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