United States Patent 3351737
Inventors:
Lawrence, Katzman
Edward, Briggin
Elia, Anthony D. N.
Stolarz, Edward M.
Publication Date:
11/07/1967
Other Classes:
604/23, 607/84, 604/303, 392/406, 4/537, 219/521
International Classes:
A61H33/12; A61H33/06
US Patent References:
| 3152240 | Electrically heated vaporizing device | | | |