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Dive into the research topics where Karl A. Northrup is active.

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Featured researches published by Karl A. Northrup.


Archive | 1980

Low pressure gas discharge lamp with increased end illumination

Stephen C. Corona; Karl A. Northrup


Archive | 1983

Mechanism and method for controlling the temperature and light output of a fluorescent lamp

Karl A. Northrup; Thomas J. Hammond


Archive | 1984

Low pressure electric discharge lamp

Thomas J. Hammond; Karl A. Northrup


Archive | 1964

ACCOUNTING DEVICE FOR XEROGRAPHIC REPRODUCING APPARATUS

Robert Frederick Osborne; John Ward Melville; Rolf W Eichler; Karl A. Northrup; John Francis Wirley


Archive | 1976

Multiple pinch incandescent lamp

Karl A. Northrup


Archive | 1980

Reduction of lamp strobing effects in a reproducing apparatus

David L. Cole; Randall C. Ryon; William L. Lama; Karl A. Northrup


Archive | 1980

Gaseous discharge lamp having novel electrode mountings

Thomas J. Hammond; Karl A. Northrup


Archive | 1985

ILLUMINATION SYSTEM INCLUDING A LOW PRESSURE ARC DISCHARGE LAMP

Stephen C. Corona; Karl A. Northrup


Archive | 1981

Eine Niederdruck-Bogenentladungslampe enthaltende Beleuchtungseinrichtung

Stephen C. Corona; Karl A. Northrup


Archive | 1967

Machine de reproduction

Robert Frederick Osborne; John Ward Melville; Rolf W Eichler; Karl A. Northrup; John Francis Wirley; Lyman Henry Turner; Robert Henri Liva; Thomas Peter Redding; John William Wagner

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