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US3162391A
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Core winding machine and method
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Spark-gap arrangement for lightning arresters
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Method of aluminizing ferrous materials
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Current interrupting devices
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Bracket for mounting articles upon a pole
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Current-interrupting apparatus
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Wire clamp
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Detachable bracket construction for lighting arms
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Street-lighting fixture
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Ground rod construction
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Earth anchor
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Control apparatus
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Rail joint
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US2327690A
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Control apparatus
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End fitting for street lights
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Open side clevis
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Pole line hardware device
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US2235026A
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Track chisel and method of treating same
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Neutral wire bracket
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US2224969A
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Spring washer and method of making same
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