US1769947A
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Connecter for electrical conduits
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US1747769A
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Apparatus for the manufacture of electrical conductors
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US1699280A
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Outlet-box connecter
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US1677332A
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Liner for electrical connecters
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US1754849A
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Bar hanger for outlet boxes, etc
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US1622087A
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Bar hanger for the support of outlet boxes for the wiring of buildings
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US1710157A
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Conduit fastener
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US1471057A
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Manufacture of flexible metallic tubing, armored cable, and like products
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US1547609A
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Manufacture of flexible metallic tubing
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US1369083A
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Sectional box structure
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US1302811A
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Electrical-conduit installation.
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US1287108A
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Metal molding.
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US1299445A
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Method of producing blue powder.
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US1225460A
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Insulator wall-bracket.
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US1274552A
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Electrical fitting.
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US1225614A
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Conduit-connector.
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US1215366A
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Armored-cable connector.
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US1215365A
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Cable-armor.
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US1155350A
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Attachment of electrical fixtures to outlet-boxes.
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US1174975A
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Tumbling-barrel.
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