Vacuum-actuated test fixture for testing electronic components

Vacuum-arc plasma apparatus for producing coatings

Vacuum-formed electrical heating device and method of...

Vacuum-tight assembly

Vacuum-tight assembly

Vacuum-tight metal plug seal for electric lamp envelope

Vacuum-type circuit breaker

Vacuum-type circuit breaker comprising series-connected...

Vacuum-type circuit breaker comprising series-connected...

Vacuum-type circuit breaker with force-supplementing means...

Vacuum-type circuit breaker with improved ability to...

Vacuum-type circuit interrupter

Vacuum-type circuit interrupter having a stroke length...

Vacuum-type circuit interrupter having contacts with...

Vacuum-type circuit interrupter with a plurality of sets of...

Vacuum-type circuit interrupter with an improved contact...

Vacuum-type circuit interrupter with contacts containing a...

Vacuum-type circuit interrupter with improved protection for...

Vacuum-type circuit interrupter with interleaving spiral...

Vacuum-type circuit interrupter with means for protecting...