Hydroprobe Trademarks

HYDROPROBE
Apparatus in the Nature of a Gauge for Measuring Liquid Content Densities of Solids and Other Solid Materials
Registered  ·  October 27, 1980  ·  73284750  · 
hydroprobe
HYDROPROBE
APPARATUS FOR MEASURING THE LIQUID CONTENT DENSITIES OF SOILS AND OTHER SOLID MATERIALS
Cancelled  ·  January 31, 1977  ·  73114074  ·