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H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
H05B31/00—Electric arc lamps
H05B31/0003—Electric arc lamps the arc being outside, in the open
H05B31/0009—Electric arc lamps the arc being outside, in the open with parallel or oblique disposition of the electrodes; Special form of the electrodes
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Claims (1)
■Ml 34719
KLASSE 21/.
DEUTSCHE GESELLSCHAFT FUR BREMER-LICHT in NEHEIM a. Ruhr. Bogenlampe mit nach unten gerichteten Elektroden.
Fulvene mit inverser Ringpolarisation, 17 [1] Heptafulvene und Heptafulvenradikalkationen: Ringverengung durch Abspaltung eines C1-Fragments bei der Einelektronen-Oxidation von Bis (dimethylamino) dibenzoheptafulven