Title:
Methods and devices for filtering tobacco smoke
United States Patent 3028864
US Patent References:
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- - 2132539

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- - 2381455

Ion controller
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Ion controller
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Inventors:
Minto, Wallace L.
Publication Date:
04/10/1962
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Assignee:
IBC RES LAB INC
Primary Class:
131/333
Other Classes:
96/66, 131/344, 96/85, 131/200
International Classes:
A24D3/04; A24D3/00
US Patent References:
2669995Disposable filter and holder
2804874Filter tobacco product
2916038Tobacco smoke filter
2933151Cleaning and treatment of gases