Method of predicting ductility of a metallic cast eutectic alloy

Method of rating brittleness of coating substance and device...

Method of testing the integrity of installed rock bolts

Methods and apparatus for the non-destructive testing of bonded

Micro-creepmeter

Modified roof strain indicator

Modular constructed load sensing system

Non-destructive testing method for determining a body's mechanic

Photoelastic stamping analysis

Portable strain gauge

Press load meter

Pressure measurement sheet and method of using the same

Pressure measuring method and apparatus with digital readout

Radio-frequency tuned-circuit microdisplacement transducer

Rock borehole shear tester

Rockbolt safety gage

Roof truss testing machine

Self-contained instrument for measuring subterranean tunnel wall

Self-contained stress indicator mechanism

Simplified apparatus for and method of tightening fasteners