POLYREL
								ENCLOSURES, ENTIRELY OR MAINLY MADE OF INSULATING PLASTIC MATERIAL, AS PROTECTIVE ENVELOPES FOR ELECTRICAL, ELECTRONIC, MEASURING, CONTROL AND OTHER EQUIPMENT; JUNCTION AND DISTRIBUTION BOXES ENTIRELY OR MAINLY MADE OF INSULATING PLASTIC MATERIAL, FOR INDOOR OR OUTDOOR INSTALLATION
                                Expired  ·  November 3, 1976  ·  73105309  ·