United States Patent 2453837
Inventors:
Fisher, Edward J.
Franklin, William B.
Smith, Delmas A.
Publication Date:
11/16/1948
Assignee:
STANDARD OIL DEV CO
Other Classes:
585/730, 422/195
International Classes:
B01J14/00; B01J19/24; C07C2/62; C07C2/00