C - Chemistry – Metallurgy – 21 – D
Patent
C - Chemistry, Metallurgy
21
D
117/100, 148/8
C21D 8/12 (2006.01) B05D 3/12 (2006.01) B05D 7/14 (2006.01)
Patent
CA 2020156
Patent Attorney's Docket No. RL-1459 ABSTRACT OF THE DISCLOSURE Grain-oriented silicon steel having an insulation coating such as a forsterite layer on its outer surface, on which is scribed by a low pressure abrasion technique a predetermined pattern of stripes to expose the metal substrate, in a manner that little or no effect will be experienced with respect to magnetic properties, but will constitute essential preparation for improvement in properties when chemical treatment of the exposed metal stripes is performed.
Ames Stuart L.
Breznak Jeffrey M.
Allegheny Ludlum Corporation
Ames Stuart L.
Breznak Jeffrey M.
Riches Mckenzie & Herbert Llp
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