United States Patent 2672633
Inventors:
Allen, Louis S.
Publication Date:
03/23/1954
Assignee:
Allen, Louis S.
Other Classes:
15/114, 15/4, 401/11
International Classes:
A63B47/04; A63B47/00
Foreign References:
| GB189608283A | | | | |
| GB190812853A | | | | |
| GB201266A | | | | |
| GB416643A | | | | |