No 4033...date of application, 22nd Feb, 1908...'an improved valve'...Paul Shovelton, of 11 Jaffrey Street, Leigh...do hereby declare the nature of this invention
Book
Imprint:
His Majesty's Stationery Office 1908.
Collation:
4 pages Illustrated. Drawing of a reproduction of the original on a reduced scale.
Language:
English
BRN:
3496622