Gear Greenbacks - September/October 2004
Archive > 2004 > September/October 2004 > Gear Greenbacks
The article "Gear Greenbacks" appeared in the September/October 2004 issue of Gear Technology.
Summary
Imagine the $10 bill with the face of Edwin R. Fellows on it and on the back, a picture of his invention: the gear shaping machine. Or the $5 bill with George B. Grant and a picture of the first hobbing machine, which he built.
Keywords
money, currency, coins
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