Laser beam transmitting apparatus
Laser plumb line
Laser ray projector and remote measuring device comprising at le
Laser survey instrument
Laser surveying equipment
Laser unit with a laser beam automatically aligned to the vertic
Light-ray indicator
Magnetic motion damping system for pendulous compensator
Multi-purpose surveying instrument
Optical automatic levelling apparatus
Optical sighting instrument
Portable laser vertical collimator and plumb line indicator
Self leveling laser plumb assembly
Self-leveling construction alignment laser
Self-leveling construction alignment laser
Self-leveling construction alignment laser
Self-leveling laser assembly
Self-leveling laser plumb
System for adjusting the orientation of a plane of laser light
System for controlling attitude of laser beam plane