US1037030 Патенты
P., & F. LUX, ELECTRIC HEATER FOR WATCHMAKERS, APPLIOATION FILED APR, 8, 9.2. uNITED STATES PATENT OFFICE. PAUL LUX AND FRED LUX, OF waTERBURY, CONNECTICUT, ELECTRICHEATER FOR waTCHMAKERs. l,0:37,030. Specification of Letters Patent. Application filed April 8, 1912, Serial No. 689,152.
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