United States Patent 3239952
Inventors:
Lange, Robert B.
Lange, Philo B.
Publication Date:
03/15/1966
Assignee:
Lange, Robert B.
Lange, Philo B.
Other Classes:
12/142R, 36/99, 36/117.600, 36/45, 36/87, 36/118.200, D02/910
International Classes:
A43B5/04
Foreign References:
| FR1083787A | | | | |
| DE820706C | | | | |
| DE917173C | | | | |