United States Patent 2553873
Inventors:
Schwebel Sr., John F.
Publication Date:
05/22/1951
Assignee:
Schwebel Sr., John F.
Other Classes:
D24/212, 601/15, 601/31
International Classes:
A61N1/32
US Patent References:
| 2447269 | Electrotherapeutic apparatus | | | |