United States Patent 1678260
Inventors:
Natale, Martino
Philip, Frasca
Oster, John E.
Publication Date:
07/24/1928
Assignee:
Natale, Martino
Philip, Frasca
Oster, John E.
Other Classes:
211/70.300, 312/31.200
International Classes:
A24F25/02; A24F25/00