Air purifying device
United States Patent 2765046

Inventors:
Fritz, Rondholz
Publication Date:
10/02/1956
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Assignee:
Fritz, Rondholz
Primary Class:
62/271
Other Classes:
96/226, 96/148, 55/524, 422/4
International Classes:
F24F3/12; F25D17/04
US Patent References:
2222882Air purifying composition and process therefor
2423702Molded block of activated carbon in a porous casing of fireproofed carbon
2638179Drying capsule