United States Patent 2969984
Inventors:
Presnick, Michael C.
Publication Date:
01/31/1961
Assignee:
Presnick, Michael C.
Other Classes:
29/520, 29/448, 29/433, 273/DIG.006, 16/421, 16/110.100
International Classes:
A63B49/08; A63B49/12; A63B51/04; A63B49/02; A63B51/00
Foreign References:
| GB204113A | | | | |
| GB317653A | | | | |
| GB712224A | | | | |