United States Patent 2487789
Inventors:
Carr, Wiley W.
Willke, Louis G.
Prince Jr., Leon M.
Publication Date:
11/15/1949
Assignee:
Carr, Wiley W.
Willke, Louis G.
Prince Jr., Leon M.
Other Classes:
102/256, 102/364, 102/272
International Classes:
F42B12/44; F42C15/00; F42C15/36; F42B12/02
Foreign References:
| GB137852A | | | | |
| GB505637A | | | | |
| IT376987B | | | | |