United States Patent 2465147
Inventors:
Butler, George L.
Byrne, James C.
Publication Date:
03/22/1949
Assignee:
Butler, George L.
Byrne, James C.
Other Classes:
160/128, 135/901, 297/184.140, 280/19.100, 135/121, 280/20, 135/96, 160/135, 280/30
International Classes:
A01M31/00; A01M31/02