Combined in a bundle together: SD 1705/MS958-SD 1705/MS963.
Search Results for "patents"
Much technical information, queries, etc; drawings and diagrams; coal; rival patents; modifications; etc. Also includes an added note to Leon Arnoux from his brother C. Arnoux. French.
The book is titled 'Registrations'. The entries give date, patent number and brief details:
1) Period 1877 to 1885 - numbers in the range 307258 to 403309 (99 patents in all)
2) Period Feb to Jun 1...