3D laser leveler
Apparatus for fine adjustment of a sextant
Bearing means for angle measuring instruments
Clinometer
Drum screw with measuring drum for a sextant
Golfer's sighting device
Handheld optical distance measurement device
Laser beam pendular level
Laser line beam emitting apparatus having functions of laser...
Laser plumb device
Laser plumbing device
Marking template for construction lasers
Method and apparatus for vertically aligning a structure
Optical instrument with angle indicator and method for...
Portable reference laser unit and attachment accessory
Precise indexing detent
Range finder
Sextant with adjustable handle
Stabilizer jig for distance measuring laser
Three-dimensional optical levelling, plumbing and angle-calibrat