Per Krainer

3 Patents

• US124696362025

  Tap Changer Arrangement and a Transformer Arrangement Comprising the Tap Changer Arrangement

  HITACHI ENERGY Ltd

  0 cites
• US124606792025

  Shaft System

  Hitachi Energy Ltd

  0 cites
• US117421572023

  Contact Bounce Reduction System

  HITACHI ENERGY SWITZERLAND AG

  0 cites