Shelfmark
Gen.5; Gen.6
Maker
General Electric Company Ltd.
Subjects
optical (photometer)
Title
Osram Photocell Photometer Unit for precision measurement of illumination
Description
Earliest Date
Latest Date
Pages
4
Address
Magnet House, Kingsway, London, W.C.2, England
Other Makers
Cat no
Contents List
Hardback
Prices
Index
Illustrations
Yes
General Ref
FM:19153
