Specification of John Henry Lock
Subtitle: bed tables for invalids, &c
Publisher: Great Seal Patent Office
Published: 1872
Place of publication: London
Language: eng
Subjects: Invalids; Tables; Self-Help Devices
Description: Patent for "improvements in bed tables and book supports for invalids and others".
Notes: Cover title.

At head of title: A.D. 1872, 16th March. No. 805.

John Henry Lock, of Kensington, in the county of Middlesex".