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Electrical Anemometers Patent Print - Blueprint Patent Title: Improvement In Electrical Anemometers Inventor Name: Frank S. Baldwin...read more
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Electrical Anemometers Patent Print - Blueprint Patent Title: Improvement In Electrical Anemometers Inventor Name: Frank S. Baldwin Year Issued: July 1 1873 Item Number: 14044 Reprint of original Patent Patent is printed on premium acid-fr...