Insulating materials : vulcabeston controller parts, field spools, bushings, etc. ... (1894)
H. W. Johns Mfg. Co. · H. W. Johns Mfg. Co. · leaf 7
-Inch Swivel Hanger, without ear 90c. For list of Ears and Mechanical Clips, see pages 10 and n. . Johns Manufacturing Co. LINE INSULATOR. ROUND TOP BARN HANGER. This Barn Hanger embodiesthe features of the Round TopHanger, and possesses similaradvantages. It is insulated withMoulded Mica and is… … SOCKET BARN HANGER. This Barn Hanger consists of a cast ironsocket and a long stud insulated withMoulded Mica.No. 200, Socket Barn Hanger, }i in. stud. without ear 90 No. 204, Socket Barn Hanger, % in. stud, without ear 90
Electricity · Electrical utilities · Insulators
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