Oy Stromberg AB

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Helsinki, SF

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Patents Grantslast 30 patents

Information Patent Grant
Method for manufacturing a support construction for the winding in...
- Patent number 4,283,840
- Issue date Aug 18, 1981
- Oy Stromberg AB
- Erkki Merikallio
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Contact device for an electric switch
- Patent number 4,127,757
- Issue date Nov 28, 1978
- OY. Stromberg AB.
- Jouko Kylmanen
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Tube-insulated shell-core current transformer
- Patent number 4,060,759
- Issue date Nov 29, 1977
- Oy Stromberg AB
- Kalevi Panu
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Current transformer
- Patent number 4,032,837
- Issue date Jun 28, 1977
- Oy Stromberg AB
- Kalevi Panu
- H01 - BASIC ELECTRIC ELEMENTS