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Dive into the research topics where John A. Oppel is active.

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Featured researches published by John A. Oppel.


Archive | 1975

Electric circuit breaker with electromagnetic-assist means for opposing magnetic contact-separating forces

John A. Oppel; Virgel E. Phillips


Archive | 1974

VACUUM-TYPE CIRCUIT BREAKER COMPRISING SERIES-CONNECTED VACUUM INTERRUPTERS WITHIN A GROUNDED TANK

Paul E. Badey; John A. Oppel


Archive | 1957

Circuit breakers dashpot mechanism

John A. Oppel


Archive | 1966

VOLTAGE CONTROLLING SHUNTING RESISTOR WITH OPERATING CAM CONTOUR MODIFYING MEANS

Paul E. Badey; John A. Oppel; Ugo R. Tognella


Archive | 1961

Bushing structure for electric apparatus

John A. Oppel


Archive | 1965

Electric circuit breaker having an auxiliary switch with an oscillation-damping latch

Barkan Philip; John A. Oppel


Archive | 1950

Three-stage retarded electromagnetic device

John A. Oppel


Archive | 1953

Overriding inverse time-delay trip mechanism for circuit breakers

John A. Oppel


Archive | 1972

Electric connector with relatively-movable terminals for outdoor, icing environment

Paul E. Badey; John A. Oppel


Archive | 1975

Control for an electric circuit breaker with valve and piston operating means

Philip Barkan; John A. Oppel

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