US1230742A
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Clamp.
|
US1207959A
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|
Pipe-coupling.
|
US1207958A
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Attachment for electrical conduits.
|
US1049752A
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Electrical-wiring apparatus.
|
US1132087A
|
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Outlet-box.
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US1128106A
|
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Electrical-conduit attachment.
|
US1117684A
|
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Coiling-machine.
|
US1117685A
|
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Coiling-machine.
|
US1117686A
|
|
Machine for forming spiral tubing.
|
US1117687A
|
|
Coiling-machine.
|
US1181150A
|
|
Coiling.
|
US1121308A
|
|
Treatment of pipes and the like.
|
US916938A
|
|
Electrical-box coupling.
|
US916932A
|
|
Hooded connector for electrical conduits and the like.
|
US916937A
|
|
Conduit-coupling.
|
US916931A
|
|
Connective device for electrical conduits and the like.
|
US975777A
|
|
Attachment for electrical conduits.
|
US1184161A
|
|
Connector for electrical conduits.
|
US1122406A
|
|
Bushing for electrical conduits.
|
US843962A
|
|
Plaster-holder for outlet-boxes.
|