Title:
Offshore oil well installation
United States Patent 2854215
Inventors:
Cox Jr., William R.
Howe, Richard J.
Publication Date:
09/30/1958
Export Citation:
Click for automatic bibliography generation
Assignee:
Shell, Dev
Primary Class:
166/356
Other Classes:
137/236.1, 166/358, 405/194
International Classes:
E21B33/037; E21B41/06; E21B33/03; E21B41/00
View Patent Images:
Download PDF 2854215        PDF help
US Patent References:
2783970Apparatus for underwater oil well drilling
2534480Marine oil drilling machine
2171672Underwater drilling
1262075N/A
0272722N/A