| US Patent: 988,723 
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| Change-speed gearing | 
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| Patentee: |  |
 | John A. Leland (exact or similar names) - Montague, MA |  
 
 
 
 
 
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| Patent Dates: |  
| Applied: | Jul. 13, 1910 |  
| Granted: | Apr. 04, 1911 |  
 
USPTO (New site tip)| Patent Pictures: |  |  |  | Leland 988,723 |  Google Patents
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                        Steve Gosselin (GL)
 
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| Description: |  | The Millers Falls Company's early days drill related patents were directed at the chuck. In the 20th century they were geard towards improving the usability of the drill. Could pressure from Goodell -Pratt and North Brothers designs have driven that change? |  |