13 Utility Patents
#81 in Warren, US
#6,219 in
#147,613 in US
#296,785 in the World
Forward Citations = 525
Company Filing History:


American Telephone & Telegraph Co., At&t Bell Laboratories
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#81 in Warren, US
#6,219 in
#147,613 in US
#296,785 in the World
Company Filing History:


Get your Inventor Badge Today