section
item
1976
Sperti mercury vapour arc discharge
sunlamp, type P164. USA.
building
helivium.com
1970 - sun- and heatlamp
1970 - other (combination)
1971 - sun- and heatlamp
1971 - sunlamp (carbon arc)
1972 - sun- and heatlamp
1976 - sun- and heatlamp
1976 - sun- and heatlamp
1976 - sunlamp (mercury)
1978 - heatlamp (metal tubular)
building 3 (time line),
section 8 (1970-1979)
