Smoke lamp drawing device

作者: Donald B Joseph

DOI:

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摘要: A smoke drawing device comprises a base of floor lamp type configuration having fan therein. tabular member is supported substantially vertically by the over fan. The tubular bent at right angles to itself its free end away from base. lampshade unit mounted on thereof and opens into in manner whereby area drawn through out

参考文章(3)
Philip H Waller, Ash tray with filter ,(1954)
John E Gilbertson, Ash tray device ,(1968)
Reuben J Humbert, Smoker's lamp ,(1958)