73718583
Mar 24, 1988
Jun 27, 1989
DISTRIBUTION SYSTEMS OF ELECTRIC ENERGY NAMELY, POWER CONDUITS, REMOVABLE DERIVATION BOXES AND REMOVABLE CURRENT SUPPLY ATTACHMENTS ALONG THE CONDUITS, ALL OF IT BEING REINFORCED AND PROVIDED FOR CONNECTING AND DISCONNECTING ELECTRIC CURRENT EVERYWHERE WITHIN THE GIVEN ENCLOSURE
Electrical and Scientific Apparatus