Specification of Benoit Lang
Subtitle: apparatus for feeding infants and invalids
Publisher: Great Seal Patent Office
Published: 1861
Place of publication: London
Language: eng
Subjects: Instrumentation; Bottle Feeding
Notes: Cover title.

At head of title: A.D. 1861. No. 439.

"Benoit Lang, of Skinner Street, Snow Hill, in the city of London, india-rubber manufacturer".