Photocells
Charles Endirect
Fisher Pierce
Haromarkt/Incatron North
Horstmann
Hy-Lite Controls
Longjoin
Royce Thompson Electrical
SELC / Westire
Sirebeck
Lucy Zodion (Fisher Karpark/Cableform)
Unknowns
Specials
V4A
Variable photocell (from July 2001)