| http://www.w3.org/ns/prov#value | - For example, U.S. Pat. No. 4,947,874 (Brooks et al.) discloses smoking articles that employ an electrical resistance heating element to provide a tobacco-flavored smoke or aerosol and other sensations of smoking without burning tobacco or other substances and without producing any combustion or pyrolysis products including carbon monoxide or any sidestream smoke or odor.
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