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G01R21/1273
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Parent Industries
G
PHYSICS
G01
Measuring instruments
G01R
MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES
G01R21/00
Arrangements for measuring electric power or power factor
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G01R21/1273
Measuring real component
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Patents Grants
last 30 patents
Information
Patent Grant
Electronic device
Patent number
6,597,230
Issue date
Jul 22, 2003
Koninklijke Philips Electronics N.V.
Ronald Hans Van Der Voort
G01 - MEASURING TESTING
Information
Patent Grant
Switched-capacitor watthour meter circuit having reduced capacitor...
Patent number
4,800,333
Issue date
Jan 24, 1989
General Electric Company
Miran Milkovic
G01 - MEASURING TESTING
Information
Patent Grant
Watt-hour meter
Patent number
4,782,287
Issue date
Nov 1, 1988
SIGMA Instruments, Inc.
Thomas I. Marx
G01 - MEASURING TESTING
Information
Patent Grant
Electronic watthour meter
Patent number
4,456,878
Issue date
Jun 26, 1984
Tokyo Shibaura Denki Kabushiki Kaisha
Ryouji Gamoh
G01 - MEASURING TESTING
Information
Patent Grant
Single phase 3-wire electronic electrical energy meter
Patent number
3,961,257
Issue date
Jun 1, 1976
General Electric Company
Miran Milkovic
G01 - MEASURING TESTING
Information
Patent Grant
Multi-wire electronic kWh meter
Patent number
3,934,198
Issue date
Jan 20, 1976
General Electric Company
Miran Milkovic
G01 - MEASURING TESTING
Information
Patent Grant
3875509
Patent number
3,875,509
Issue date
Apr 1, 1975
G01 - MEASURING TESTING
Patents Applications
last 30 patents
Information
Patent Application
Electronic device
Publication number
20020196011
Publication date
Dec 26, 2002
Ronald Hans Van Der Voort
G01 - MEASURING TESTING