Title:
Method and apparatus for magnetically marking sheet steel by deposition of metal ions
United States Patent 3158805

Inventors:
Kalbfell, David C.
Publication Date:
11/24/1964
View Patent Images:
Assignee:
Kalbfell, David C.
Primary Class:
Other Classes:
324/206, 204/298.050, 324/243, 427/528, 427/526, 219/109, 219/76.140
International Classes:
H01F41/18; H01F41/14
US Patent References:
2703384Apparatus for measuring the thickness of nonmagnetic coatings on magnetic material
2814719Automatic electric arc-stitch welding
2832040Direct reading seam depth indicator
2844788Magnetic sheet detecting means
2845524Arc welding apparatus
2885534Electric arc welding apparatus
2922023Electric arc process and apparatus