Self-aligning laser transmitter having a dual slope grade mechan
Self-leveling system for optical distance measuring instruments
Sensor for determining the angular position of a radiating...
Shot simulator using laser light for simulating guided missiles
Single multiple aperture (“SMART”) lens system
Single wheel celestial navigator
Spatially resolving range-finding system
Sun direction detection system
Sunbeam incident angle detecting device
Survey apparatus
Survey system
Survey system
Survey system
Survey system
Survey systems
Surveying apparatus
Surveying apparatus
Surveying apparatus
Surveying instrument
Surveying instrument and method for acquiring image data by...