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.)
Verfahren zur Herstellung von wasserunloeslichen Azofarbstoffen auf Faserstoffen tierischen Ursprungs oder Cellulosefasern sowie deren Gemischen untereinander oder auf Formstuecken aus Vulkanfiber
II. The genuine oriental process for giving to cotton yarn or stuff the fast or ingrained colour, known by the name of Turkey red, as practised at Astracan