United States Patent 2470251
Inventors:
Oswald, Kolbert
Sherman, Messer Albert
Publication Date:
05/17/1949
Assignee:
WALDES KOHINOOR INC
Other Classes:
24/403, 29/410, 139/426R, 139/420A
International Classes:
A44B19/34; A44B19/40; F02B19/04; A44B19/24; F02B19/00