Water level box staff

Water level box staff

The utility model discloses a box staff with a vertical precision correction device. The box staff is formed by arranging a transverse horizontal level bubble and a longitudinal horizontal level bubble, or a front circular level bubble and a back circular level bubble on the end part of a common box...

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1. Verfasser: XI YUQING
Format: Patent
Sprache:chi ; eng
Schlagworte:
GYROSCOPIC INSTRUMENTS
MEASURING
MEASURING DISTANCES, LEVELS OR BEARINGS
NAVIGATION
PHOTOGRAMMETRY OR VIDEOGRAMMETRY
PHYSICS
SURVEYING
TESTING
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creator XI YUQING
description The utility model discloses a box staff with a vertical precision correction device. The box staff is formed by arranging a transverse horizontal level bubble and a longitudinal horizontal level bubble, or a front circular level bubble and a back circular level bubble on the end part of a common box staff. A user swings the box staff through observing the level bubbles, so that the box staff can be erected up to be vertical easily, thereby ensuring the measuring precision.
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language chi ; eng
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subjects GYROSCOPIC INSTRUMENTS
MEASURING
MEASURING DISTANCES, LEVELS OR BEARINGS
NAVIGATION
PHOTOGRAMMETRY OR VIDEOGRAMMETRY
PHYSICS
SURVEYING
TESTING
title Water level box staff
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