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Telephone Transmitter and Receiver
Patent for a telephone transmitter and receiver. The device is for lines "known as 'long-distance' telephones for the purpose of taking up the weakened vibrations and re-energizing them...transmitting them with increased volume" (line 12-15) illustration included.
Date:
June 30, 1903
Creator:
Sammons, Oliver P.
System:
The Portal to Texas History
Sewing Machine Attachment
Patent for a sewing machine attachment that "aims to provide an attachment for use in connection with any sewing machine combining means for hemming, tucking, and braiding, the several parts being adjustable to admit of making hems any width and tucks any size and distance apart, the device being simple and comprising a minimum number of parts" (lines 9-16). Illustration included.
Date:
June 9, 1903
Creator:
Fain, Eliza Jane
System:
The Portal to Texas History