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BSI BS 133:1921

Normal Type Vacuum Tungsten Filament Electric Lamps
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BSI BS 133:1921

Normal Type Vacuum Tungsten Filament Electric Lamps

PUBLISH DATE 1921
BSI BS 133:1921
WITHDRAWN
SDO BSI: British Standards Institution
Document Number BS 133
Publication Date Jan. 1, 1921
Language en - English
Page Count
Revision Level
Supercedes
Committee
Publish Date Document Id Type View
Jan. 1, 1921 BS 133:1921 Revision