Title:
Adapter for handling fluid under pressure
United States Patent 2804279
Publication Date:
08/27/1957
International Classes:
E21B33/04; E21B33/03
US Patent References:
| 1701691 | Method of and apparatus for inserting corporation cocks | | | |
| 1833700 | Plugging device | | | |
| 2507262 | Multiple zone control apparatus | | | |