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| Patents for Connecticut Valley Mfg. Co. | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 20,192 | May 11, 1858 | W.A. Clark | Method of seating the movable cutter in expansive bits | |
 | 90,759 | Jun. 01, 1869 | H.C. Lewis | Single Twist Auger Bit | |
 | 1,056,670 | Mar. 18, 1913 | L.S. Hayden | Expansion Bit | |
 | 1,398,779 | Nov. 29, 1921 | L.S. Hayden | Tool for boring and counterboring wood | |