Search
- Willis Straight Line Wattmeter, 1907-1919 - Wattmeters are used to test and measure electric power. Their development and design improvements grew as electric power generation expanded in the late 19th- and early-20th centuries. The Willis Electric Meter Company sold this commutator-type wattmeter in the early 1900s. It was manufactured by the Federal Electric Company of Chicago, Illinois.
- 1907-1919
- Collections - Artifact
Willis Straight Line Wattmeter, 1907-1919
Wattmeters are used to test and measure electric power. Their development and design improvements grew as electric power generation expanded in the late 19th- and early-20th centuries. The Willis Electric Meter Company sold this commutator-type wattmeter in the early 1900s. It was manufactured by the Federal Electric Company of Chicago, Illinois.
- Willis Straight Line Meter, 1907-1919 - Wattmeters are used to test and measure electric power. Their development and design improvements grew as electric power generation expanded in the late 19th- and early-20th centuries. The Willis Electric Meter Company sold this commutator-type wattmeter in the early 1900s. It was manufactured by the Federal Electric Company of Chicago, Illinois.
- 1907-1919
- Collections - Artifact
Willis Straight Line Meter, 1907-1919
Wattmeters are used to test and measure electric power. Their development and design improvements grew as electric power generation expanded in the late 19th- and early-20th centuries. The Willis Electric Meter Company sold this commutator-type wattmeter in the early 1900s. It was manufactured by the Federal Electric Company of Chicago, Illinois.