Signal-producing pipe caliper
Signalling arrangement for automotive vehicle steering wheels
Sill attachment underframe measurement system
Simple controller for a power operated tape measure
Simple controller for a power operated tape measure
Simple inspection device for wheel alignment
Simple three-dimensional measuring machine
Simplified compass with multiple segment display capability
Simplified lettering system
Simply-constructed instrument for measuring horizontal line, ver
Sine bar
Sine bar assembly with vertically fixed pivot axis
Sine bar for compound angles
Sine bar gage set and assembly with direct-reading angle indicia
Sine plate adjustable tension clamp
Sine set miter gauge and method
Sine-bar gage-blocks and direct reading micrometer adjustment
Single beam reference system for railway surveying
Single communication line interconnect
Single contact point distance measuring for plane determination