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Scientific American

March 12, 1870

1 min read

Apparatus for Purifying the Air

By the Evaporation of Coal Tar, Pitch, Carbolic Acid, Phenic Acid, or Any other Disinfectant for Apartments, or Hospitals

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More by C. Widemann

This article was originally published with the title “Apparatus for Purifying the air by the Evaporation of Coal Tar, Pitch, Carbolic Acid, Phenic Acid, or Any other Disinfectant for Apartments, or Hospitals” in Scientific American Magazine Vol. 22 No. 11 (March 1870), p. 172
doi:10.1038/scientificamerican03121870-172a

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