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US1914777A
|
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High tension switch jaw assembly
|
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US1749537A
|
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High-tension switch
|
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US1742143A
|
|
Disconnecting air-break switch
|
|
US1560165A
|
|
High-tension switch
|
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US1797346A
|
|
Method and apparatus for locating defective insulators
|
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US1500499A
|
|
Clamp for electrical conductors
|
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US1569981A
|
|
Expulsion-type repeating fuse
|
|
US1472176A
|
|
Jack for dead-end insulators
|
|
US1551252A
|
|
Grounding stick
|
|
US1451832A
|
|
Manipulating stick for clamps, switches, etc., in electric distributing systems
|
|
US1488347A
|
|
Clamp for electrical conductors
|
|
US1432561A
|
|
Pole grab for insulator changers
|
|
US1485228A
|
|
Cross-arm hook for electric transmission lines
|
|
US1473960A
|
|
Throw-off or circuit-breaking switch for skeet heads
|
|
US1485227A
|
|
Automatic circuit-breaker attachment for high-tension transmission lines
|
|
US1344042A
|
|
Spark-gap indicator
|
|
US1473959A
|
|
Circuit-opening device
|
|
US1500498A
|
|
Snap clamp for tapping electric conductors
|
|
US1370651A
|
|
Stick for handling high-voltage line conductors
|
|
US1394020A
|
|
Insulator-changer
|
