United States Patent 2426997
Inventors:
Gray, John C.
Thibodeau, Wilfred E.
Church, Joseph H.
Kessenich, Gregory J.
Publication Date:
09/09/1947
Assignee:
Gray, John C.
Thibodeau, Wilfred E.
Church, Joseph H.
Kessenich, Gregory J.
International Classes:
F42B12/10; F42B12/02
Foreign References:
| FR504857A | | | | |
| GB191128030A | | | | |
| GB191509320A | | | | |
| GB190314827A | | | | |
| DE426982C | | | | |