Durham Geo-Enterprises, Inc. Trademarks
TORVANE
Filed: April 22, 1965
APPARATUS FOR TESTING SOIL SPECIMENS FOR THE DETERMINATION OF SHEAR STRENGTH
Owned by: Durham Geo-Enterprises, Inc.
Serial Number: 72217146
DGSI DURHAM GEO SLOPE INDICATOR
geotechnical instruments for measuring tilt, displacement, pressure, and strain in soil, rock, concrete and steel structures…
Owned by: Durham Geo-Enterprises, Inc.
Serial Number: 76650591
O·SOX
Chemical compounds in the nature of a calcium based mix contained in containers used in groundwater wells for biodegradation…
Owned by: Durham Geo-Enterprises, Inc.
Serial Number: 77029148
DURHAM GEO SLOPE INDICATOR
GEOTECHNICAL INSTRUMENTS, NAMELY, INCLINOMETERS USED TO MEASURE TILT, DISPLACEMENT, PRESSURE, AND STRAIN IN SOIL, ROCK,…
Owned by: Durham Geo-Enterprises, Inc.
Serial Number: 78090819
