Title:
Microfilm electric heaters
United States Patent 3067310

Inventors:
Walz, Frank C.
Oliver, William D.
Publication Date:
12/04/1962
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Assignee:
Walz, Frank C.
Oliver, William D.
Primary Class:
219/541
Other Classes:
338/308, 219/543, 428/457
International Classes:
H05B3/26; H05B3/22
US Patent References:
2739083Electrically conductive material
2787694De-icing or anti-icing apparatus
2795682Electric heaters
2808351Electrically conducting coated glass or ceramic articles suitable for use as a lens, a window or a windshield, or the like
2921257Method of testing electrically conducting films
2939807Method of making a heating panel
2977450Transparent electrically conducting films