United States Patent 3164153
Publication Date:
01/05/1965
Other Classes:
433/216, 433/91, D24/113
International Classes:
A61C17/08
US Patent References:
| 2522261 | Dental appliance | | | |
| 3018777 | Anesthetic vaporizer and administering apparatus | | | |
| 3065749 | Injection and vacuum cleaner for dental therapeutics | | | |