Title:
CIRCULATING CASING HANGER AND RUNNING TOOL APPARATUS
United States Patent 3460615


Inventors:
Watkins, Bruce J.
Application Number:
US3460615DA
Publication Date:
08/12/1969
Filing Date:
10/09/1967
Assignee:
REGAN FORGE & ENG CO
Primary Class:
International Classes:
E21B33/04; E21B33/14; E21B33/00; (IPC1-7): E21B33/05; E21B33/14; E21B43/10
View Patent Images: