Ringelmann smoke chart.
| Data(s) |
31/12/1969
|
|---|---|
| Resumo |
Revision of I. C. 7718: Kudlich, Rudolf. Rignelmann smoke chart. 1955. Mode of access: Internet. |
| Formato |
bib |
| Identificador | |
| Idioma(s) |
eng |
| Publicador |
[Washington] : U.S. Bureau of Mines, |
| Direitos |
Items in this record are available as Public Domain, Google-digitized. View access and use profile at http://www.hathitrust.org/access_use#pd-google. Please see individual items for rights and use statements. |
| Palavras-Chave | #Smoke prevention. |
| Tipo |
text |
