Title:
Quick mounting and demountable pressure head
United States Patent 2692066


Inventors:
Conrad, Martin B.
Application Number:
US30525752A
Publication Date:
10/19/1954
Filing Date:
08/19/1952
Assignee:
BAKER OIL TOOLS INC
Primary Class:
Other Classes:
166/75.13, 279/8, 285/123.11
International Classes:
E21B33/04; F16J13/02
View Patent Images:
US Patent References:
1928833Casing head1933-10-03
1589729Pipe fitting1926-06-22
1323660N/A1919-12-02
1114808N/A1914-10-27