An electric power cord take-up reel having an external housing, a shaft mounted in the housing, and a spool journalled on the shaft for storing a length of electric power cord and spring-biased to rewind a length of cord previously withdrawn from the reel, and supplied with electric current from an external...http://www.google.es/patents/US5101082?utm_source=gb-gplus-sharePatente US5101082 - Electric power cord take-up reel with automatically operated latch pawl actuated switching mechanism
Electric power cord take-up reel with automatically operated latch pawl ...
