Method of protecting subterranean metallic structures
United States Patent 2491225
US Patent References:
/0843357.html
- - 0843357
/1096177.html
- - 1096177
Pipe-line covering
- - 1867984
Protective means for buried metallic surfaces
- - 1871125
/0843357.html
- - 0843357
/1096177.html
- - 1096177
Pipe-line covering
- - 1867984
Protective means for buried metallic surfaces
- - 1871125
Inventors:
Stearns, Dick E.
Publication Date:
12/13/1949
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Export Citation:
Assignee:
Stearns, Dick E.
Primary Class:
Other Classes:
204/196.300, 156/190, 204/196.360
International Classes:
C23F13/02; F16L58/16; H01B13/22; C23F13/00; F16L58/02
Foreign References:
| IT249714B | ||||
| DE408799C |