METHOD FOR FORMING A TAP HOLE IN A WALL PORTION OF A METALLURGICAL FURNACE CONTAINING MOLTEN METAL
United States Patent 3492171
US Patent References:
Method of controlling scale in gas cutting of metals
- - 1872410


Inventors:
Resch, Werner
Fliege, Oskar
Publication Date:
01/27/1970
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Assignee:
HOESCH AG
Primary Class:
266/45
Other Classes:
148/194
International Classes:
C21B7/16; F27D3/15; C21B7/00; F27D3/00; B23K7/00




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