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"Telephone, n. An invention of the devil which abrogates some of the advantages of making a disagreeable person keep his distance. "

Ambose Bierce

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Assignee: Power Systems, Inc.

Location: Cambridge, MA
No. of patents: 1

Number	Title	Issue Date
4341982	Simultaneous independent control system for electric motors A system for simultaneously and independently controlling a plurality of electric motors from a number of dispersed stations. The system operates by transmission of duty cycle modulated selected frequencies superimposed on a DC track voltage on a common p...	07/27/1982