Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filedfiledCritical
Application grantedgrantedCritical
Publication of FR533916ApublicationCriticalpatent/FR533916A/en
FR533916D1921-04-081921-04-08
Process and plant for the continuous distillation of coal tar, mineral oils and other similar substances
ExpiredFR533916A
(en)