Adjustable choke for oil wells
United States Patent 2589373
US Patent References:
Flow regulating means for oil wells
- - 2150077
Pressure reducing means
- - 2296145
Valve assembly
- - 2376619
Flow regulating means for oil wells
- - 2150077
Pressure reducing means
- - 2296145
Valve assembly
- - 2376619
Inventors:
Eugene, Hammock Walter
Publication Date:
03/18/1952
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Assignee:
Eugene, Hammock Walter
Primary Class:
Other Classes:
137/601.190, 166/91.100
International Classes:
E21B34/02; E21B34/00