Measuring arrangement to determine location of corners for a...

Geometrical instruments – Straight-line light ray type – Alignment device

Reexamination Certificate

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C033S0010LE, C033SDIG021

Reexamination Certificate

active

07487595

ABSTRACT:
An arrangement comprising a laser projection device is used in determining the location of corners in constructing a foundation of a building or other structure. The arrangement is also used in positioning wooden beams perpendicular to one another in a floor frame or similar structure.

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