Mark Identification

WORKHORSE

Serial Number

74100709

Filing Date

Sep 27, 1990

Registration Date

Sep 3, 1991

Trademark by

KEITHLEY INSTRUMENTS INC.

Classification Information

micro computer based industrial control and monitoring products for personal computers; namely, interface boards, computer software, card racks, cover plates, mounting ears, covers, panels, power supply modules, and cables

Electrical and Scientific Apparatus