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Mounting for electrical devices
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Vacuum controlled emergency brake operating device
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Electrical receptacle
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Interlocking receptacle, connecter, and cap
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Flexible support for canopy switches
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Timing mechanism for operating switches
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Attachment plug cap
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Magnet controlled switch
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Gripping receptacle
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Vaporproof mounting for receptacles
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Grounded socket casing
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Dustproof connecter
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Rubber cord connecter
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Screwless switch and receptacle in outlet boxes
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Electrical connecter
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Screw head slotting machine
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Shock absorbing switch handle
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Electric pull socket
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|
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|
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Outlet receptacle
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US2051856A
|
|
Duplex receptacle
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