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US2722335A
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Hydraulic grommet tool
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US2819098A
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Clamp for wire in electric outlet boxes
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US2854395A
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Automatic apparatus for electro plating pipe and conduits
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US2854939A
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Apparatus for making electrical outlet boxes with automatic operation
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US2827510A
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Electric cables for transformer leads and the like
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US2781145A
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T and cross boxes for electric header ducts
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US2767239A
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Electrical raceway with reduced inside friction
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US2763294A
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Outlet for underfloor header duct
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US2782743A
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Continuous tube mill with tension compensator
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US2930269A
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Flying saw with stationary motor base
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US2792211A
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Apparatus for heating and quenching metal parts
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US2675813A
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Apparatus for conveying pipe through an electrolyte
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US2742017A
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Automatic apparatus for simultaneously enameling inside and outside electric conduits
|
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US2748734A
|
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Continuous tube welding apparatus with multi-stage heating
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US2544266A
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Method of making outlet boxes
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US2544503A
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Method of making nonmetallic sheathed cable
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US2544233A
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Nonmetallic sheathed multiconductor cable
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US2581673A
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Continuous method of making butt weld tubing
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US2544232A
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Electrical outlet box
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US2455180A
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Thin-wall tubing connector
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