FIRE ARRESTER FOR A PETROLEUM WELL
United States Patent 3463227
US Patent References:
/1016213.html
- - 1016213

Drill head
- - 1479872

Four-slot fire-extinguishing coupling
- - 1552342

Well fire extinguisher
- - 1567097

Fire extinguisher and blowout preventer
- - 2041394


Inventors:
Smith, Alonzo L.
Publication Date:
08/26/1969
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Assignee:
Alonzo, Smith L.
Primary Class:
166/75.130
Other Classes:
169/69
International Classes:
E21B35/00; A62C3/04; E21B33/03
US Patent References:
2080610Combination blow-out preventer, casing head construction
2258117Rock duster and method




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