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I wish to receive bids for the manufacture of patented power and extension cords (US Pat#7,944,364). The protects against fire, shock and other hazards associated with cord damage or deterioration and never requires testing and is not subject to nuisance tripping and never requires resetting. Components, other than a conventional a.c. plug, socket and enclosure, are few and include an a.c. relay, three rectifier diodes, a fuse and a 3 wire power cord in which the ungrounded wire is shielded.