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ORIGINAL PRINTED PATENT APPLICATION NUMBER 18,954 FOR AN IMPROVED FILAMENT OR RESISTOR FOR HEATING UNITS OR LAMPS. (1909)..(THE INVENTOR OF 7 AND 8 SOUTHAMPTON BUILDINGS, LONDON).
🇺🇸 United States
ORIGINAL PRINTED PATENT APPLICATION NUMBER 18,954 FOR AN IM…
By: Harold Williamson. (inventor0. Lake
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