United States Patent 2812117
Inventors:
Butkus, Alex M.
Ryan, George R.
Publication Date:
11/05/1957
Other Classes:
215/DIG.003, 604/405, 141/311R, 222/481, 141/301
International Classes:
A61J1/00
US Patent References:
| 2636502 | Apparatus for cleaning hypodermic needles | | | |
| 2736469 | Sealing and pouring closures | | | |