Garage Door Openers . Ryan Cowan IDS 1999 N00843984@unf.edu Blake Cowan 11/2/12 N00835375@unf.edu. The E lectric Opener. C.G. Johnson 1926 in Hartford City Indiana Spring Electric motor Controls Runs on a track. Remote Control. Two U.S. inventors Transmitter & receiver
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Ryan Cowan IDS 1999 N00843984@unf.edu
Blake Cowan 11/2/12 N00835375@unf.edu