U.S. Patent for a device to measure electric current in cows.
Description: Four-Terminal Resistor Method for Measuring Electric Current in Cows
Inventor: Martin H. Graham (the ‘Graham’ in Graham-Stetzer)
Patent Date: November 7, 1995
U.S. Patent for a device to measure electric current in cows.
Description: Four-Terminal Resistor Method for Measuring Electric Current in Cows
Inventor: Martin H. Graham (the ‘Graham’ in Graham-Stetzer)
Patent Date: November 7, 1995
