United States Patent 1811113
Inventors:
Derby, Thomas N.
Publication Date:
06/23/1931
Assignee:
Thomas, Derby N.
Elwin, Bentley S.
Other Classes:
215/321, 215/392, 222/545, 215/309, 215/41, 222/570, 222/481
International Classes:
B65D41/44; B65D41/50; B65D41/32