United States Patent 2677951
Inventors:
Haines, John F.
Haines, Betty F.
Publication Date:
05/11/1954
Assignee:
Haines, John F.
Haines, Betty F.
Other Classes:
68/272, 68/271, 68/214
International Classes:
D06F45/18; D06F45/00
Foreign References:
| GB229494A | | | | |
| GB390538A | | | | |
| FR607045A | | | | |