United States Patent 2071731
Inventors:
Craig, James A.
Ernest, Davies
Publication Date:
02/23/1937
Assignee:
Craig, James A.
Ernest, Davies
Other Classes:
242/118.500, 137/377, 285/190, 242/577.100
International Classes:
B65H75/24; B65H75/38; B65H75/18