GRAD-LINE, INC. Trademarks
GRAD-LINE
Filed: May 6, 1966
GRADE STAKES-NAMELY, MARKERS USED IN SURVEYING
Owned by: GRAD-LINE, INC.
Serial Number: 72245076
GRAD-LINE
Filed: April 28, 1967
POSITION SENSING AND CONTROL EQUIPMENT FOR AUTOMATICALLY ADJUSTING THE BLADE OR SCREED ON CONCRETE OR ASPHALT PAVING AND…
Owned by: GRAD-LINE, INC.
Serial Number: 72270242
GLI
Filed: August 27, 1980
Electronic and Electro-Hydraulic Control Systems and Hydrostatic Loop Controls-Namely, Sensors and Signal Processors
Owned by: GRAD-LINE, INC.
Serial Number: 73275841
THUMB THUMPER
Filed: November 23, 1981
Electronic Motion Sensors for Cable Drums
Owned by: GRAD-LINE, INC.
Serial Number: 73338450
