78013576
Jun 20, 2000
A DEVICE USED IN THE RAW MATERIALS AND CONSTRUCTION INDUSTRIES TO MEASURE AND EVALUATE THE RELATIVE DENSITY OF MATERIALS, NAMELY, MATERIALS USED IN FOUNDATIONS AND HIGHWAY MATERIALS; COMPUTER SOFTWARE FOR DETERMINING THE OPERATIONAL STATUS AND CALIBRATION STATUS OF ELECTRICAL DENSITY GAUGES FOR USE IN THE CONSTRUCTION, RAW MATERIALS AND MANUFACTURING INDUSTRIES; COMPUTER SOFTWARE FOR DETERMINING THE ACCEPTABILITY OF MATERIAL SPECIMENS TO PREDETERMINED DENSITY, SPECIFIC GRAVITY AND POROSITY STANDARDS OF COMPACTED MATERIALS
Electrical and Scientific Apparatus