This is an index of the archive of ICL material held in the Science Museum Library. For details of access click here. The whole archive is covered in the master index.
This index is maintained by the Computer Conservation Society.

18. British Patents [boxed]

Item no	Date	Content
18/1		Index of British & American patents 1971-1964 [1 file]
18/2		Nos 200 - 200,000
18/3		Nos 200,001 - 278,999
18/4		Nos 279,000 - 328,300
18/5		Nos 328,301 - 367,999
18/6		Nos 368,000 - 397,000
18/7		Nos 397,001 - 423,000
18/8		Nos 423,001 - 458,800
18/9		Nos 458,801 - 492,999
18/10		Nos 493,000 - 510,999
18/11		Nos 511,000 - 524,000
18/12		Nos 524,001 - 542,000
18/13		Nos 542,001 - 592,000
18/14		Nos 592,001 - 652,999
18/15		Nos 653,000 - 673,000
18/16		Nos 673,001 - 677,000
18/17		Nos 677,001 - 708,000
18/18		Nos 708,001 - 751,999
18/19		Nos 752,000 - 783,999
18/20		Nos - 803,000
18/21		Nos 803,001 - 808,000
18/22		Nos 808,001 - 830,000
18/23		Nos 830,001 - 846,000
18/24		Nos 846,001 - 875,000
18/25		Nos 875,001 - 932,000
18/26		Nos 932,001 - 998,999