United States Patent 2765046
Inventors:
Fritz, Rondholz
Publication Date:
10/02/1956
Assignee:
Fritz, Rondholz
Other Classes:
96/226, 96/148, 55/524, 422/4
International Classes:
F24F3/12; F25D17/04
US Patent References:
| 2222882 | Air purifying composition and process therefor | | | |
| 2423702 | Molded block of activated carbon in a porous casing of fireproofed carbon | | | |
| 2638179 | Drying capsule | | | |