United States Patent 2558818
Inventors:
Campbell, Willard S.
Publication Date:
07/03/1951
Assignee:
CHERRY BURRELL CORP
Other Classes:
134/111, 134/141, 134/107, 134/80, 134/53, 134/155, 134/182
International Classes:
B08B9/08
Foreign References:
| FR585112A | | | | |
| AU598527A | | | | |
| SE66732A | | | | |
| DK52793A | | | | |