Title:
ANIMAL MASK
United States Patent 3491755


Inventors:
Barghini, Robert J.
Clayton, Russell F.
Application Number:
US3491755DA
Publication Date:
01/27/1970
Filing Date:
02/19/1968
Assignee:
MINNESOTA MINING & MFG
Primary Class:
Other Classes:
54/80.3, 128/207.13
International Classes:
B68B5/00; (IPC1-7): A61D9/00; A61M15/00; A62B23/06
View Patent Images:
US Patent References:
3333585Cold weather face mask1967-08-01
1311933N/A1919-08-05
0960142N/A1910-05-31
0501463N/A1893-07-11
0381285N/A1888-04-17