Collection Search

Registers of letters patents. Includes details of inventions.

Reference: D/Y/F9/2

Date: 31 July 1802 - 15 May 1880

Brevets d'invention (patentes). Register of patents and trade marks applied for.

Reference: D/Y/F11/3

Date: 27 December 1913 - 9 June 1923

Brevets d'invention (patentes). Register of patents and trade marks applied for.

Reference: D/Y/F11/5

Date: 17 January 1931 - 28 December 1931

Brevets d'invention (patentes). Register of patents and trade marks applied for.

Reference: D/Y/F11/6

Date: 2 January 1932 - 30 November 1936

Brevets d'invention (patentes). Register of patents and trade marks applied for.

Reference: D/Y/F11/7

Date: 16 January 1937 - 13 June 1940