United States Patent 3009625
Inventors:
Ackley, Edward M.
Pfeiffer, Edward J.
Publication Date:
11/21/1961
Assignee:
Ackley, Edward M.
Pfeiffer, Edward J.
Other Classes:
211/59.100, 206/449, 229/120.380, 229/917, 206/503
International Classes:
B65D5/496; B65D5/48