Specification of William Jean Jules Varillat
Subtitle: obtaining extracts, &c. from vegetable substances
Publisher: Great Seal Patent Office
Published: 1856
Place of publication: London
Language: eng
Subjects: Plant Extracts
Description: Patent for "the extraction of of colourings, tanning, and saccharine matters from vegetable substances".
Notes: At head of title: A.D. 1856. No. 942.

"William Jean Jules Varillat, of Rouen, in the empire of France".