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Stanley Security CECSFBB179-54 Steel Full Mortise Ball Bearing Concealed Conductor Concealed Switch Standard Weight Electrified Hinge With 4-Wire
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WW: Electric Hinge - I Dig Hardware - Answers to your door, hardware, and code questions from Allegion's Lori Greene.
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PINNACLE HARDWARE SUPPLY 4 Wire Stainless Steel Electrified Hinges 4.5 inch x 4.5 inch x 3.5mm - Amazon.com
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Amazon.com: Seco-Larm SD-H412 Electric Transfer Hinge, Provides A Vandal-resistant Method For Protecting And Concealing Wires Between A Hollow Door And Door Frame, Dimensions 4.5"x4.5"x 0.125"
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