Stereoplotting apparatus for correlating image points...

Stereoscopic image observing apparatus

Stereoscopic rangefinder

Storage and visualizing points of interest in a navigation...

Strap-on leveling/plumbing device kit

Strapdown gyro drift calculator

Structure and method for holding and protecting vials in levels

Studfinder and laser line layout tool

Sub-miniature gyro

Sun dials

Sundial

Super radiant light source

Support of vibrating beam near nodal point

Support structure for fiber optic coil

Surface deflection sensor

Surface mapping system and method

Surface metering device

Survey apparatus and method employing rate-of-turn and free...

Survey instrument tower

Surveying instrument