IP Library › Granted Patent US 550,155
Granted Patent S1
US 550,155 · App. 29/275,256 · Granted Sep 4, 2007

Electrical transformer

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Quick Facts
Patent No.
US 550,155
App. No.
29/275,256
Granted
Sep 4, 2007
Kind
S1
Claims (1)

The ornamental design for an electrical transformer, as shown and described.

Assignments (1)
MERGER Recorded Nov 15, 2016
From: ABB TECHNOLOGY LTD.
To: ABB SCHWEIZ AG
Reel/Frame 040621/0633 →