United States Patent 2435884
Inventors:
Galewski, George F.
Publication Date:
02/10/1948
Assignee:
Kermit, Niles B.
Howard, Russell D.
Other Classes:
366/317, 366/176.100, 366/101, 366/181.700
International Classes:
B01F5/06
Foreign References:
| AT119077B | | | | |
| GB554085A | | | | |
| GB554573A | | | | |