United States Patent 2595757
Inventors:
William, Brandt Edgar
Publication Date:
05/06/1952
Other Classes:
102/481, 102/257, 102/499
International Classes:
F42C1/02; F42C15/24; F42C15/34; F42C1/00; F42C15/00
Foreign References:
| GB190518185A | | | | |
| DE359102C | | | | |
| GB489020A | | | | |
| FR695190A | | | | |