Curt Jacobsson

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Vesteras, SE

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Patents Grantslast 30 patents

Information Patent Grant
Root mean square measuring device for negative sequence current
- Patent number 4,641,088
- Issue date Feb 3, 1987
- Asea Aktiebolag
- Curt Jacobsson
- G01 - MEASURING TESTING
Information Patent Grant
Digital time dependent relay circuitry
- Patent number 4,275,356
- Issue date Jun 23, 1981
- ASEA Aktiebolag
- Stig Aviander
- G04 - HOROLOGY