| (84) |
Designated Contracting States: |
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AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL
NO PL PT RO SE SI SK SM TR |
| (43) |
Date of publication of application: |
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11.01.2012 Bulletin 2012/02 |
| (73) |
Proprietor: ABB Schweiz AG |
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5400 Baden (CH) |
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| (72) |
Inventors: |
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- Carelli, Vittorio
26900, Lodi (IT)
- Franco, Walter-Salvatore
24100, Bergamo (IT)
|
| (74) |
Representative: De Santis, Giovanni |
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ABB S.p.A.
Via L. Lama, 33 20099 Sesto San Giovanni (MI) 20099 Sesto San Giovanni (MI) (IT) |
| (56) |
References cited: :
JP-A- 54 050 937 US-A- 3 213 222 US-A- 3 614 350
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US-A- 1 810 694 US-A- 3 610 850
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