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Amazon.com: American Educational 7-KS-1 Brass Small Knife Switch, Single Pole Single Throw (SPST), Plastic Base, 2" Length, 1" Width, 1" Height (Bundle of 10) : Industrial & Scientific
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Sold Price: Vintage Industrial Electric Knife Switch - WS Hill Electric Co. - December 6, 0120 9:00 AM CST
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Sold Price: Vintage Industrial Electric Knife Switch - WS Hill Electric Co. - December 6, 0120 9:00 AM CST
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20th century vintage electric knife switch at the Bois du Cazier coal mine museum, Marcinelle, Charleroi, Belgium Stock Photo - Alamy
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