Grace's Guide

British Industrial History

Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 148,478 pages of information and 233,901 images on early companies, their products and the people who designed and built them.


From Graces Guide

Jump to: navigation, search
1971. Panalarm.

of Bury St Edmunds, Suffolk.

1974 Developed an alarm communication system using crt display instead of the usual illuminated legend which compresses the information onto a 9in screen.[1]

See Also


Sources of Information