Hendrey Relays

Hendrey Relay Ltd, of 392 Bath Road, Slough. (1951)
Hendrey Relays and Electrical Equipment Ltd, of 392 Bath Road, Slough. (1967)
Established 1936.
1951 Maker of Mercury switch contactors, relays and door switches for the control of electric annealing furnaces, etc.; time delay relays; overload relays; voltage relays; limit switches and float switches; control apparatus to customers' requirements.