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Dear Sir/Madame, I am an engineer and have and old ( but very good ) sharp scientific calculator model EL-5103 for long years. It is in well work condition except its LCD display began to gone off . I thint the pixels start to become dead. I wish to replace its display but there isn't any part number on display. It is 1 line 12 digit 5*7 matrix LCD in dimensions 58mm*16mm. On the backside of calculator, it writes about LCD controller model "United States Patent 3902169 & 3976994 " only and no any part number on LCD itself .I would be greatfull if you could help me , how and where I can find a compatible display to replace it as soon as possible. Best Regards

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