Method and apparatus for coring
United States Patent 2264449

Inventors:
Mounce, Whitman D.
Publication Date:
12/02/1941
View Patent Images:
Download PDF 2264449 pdf       PDF help
Export Citation:
Click for automatic bibliography generation
Assignee:
STANDARD OIL DEV CO
Primary Class:
175/59
Other Classes:
175/245, 175/70, 175/233, 175/254
International Classes:
E21B25/08; E21B25/00