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| Patents for H. Bates & Son | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 92,419 | Jul. 13, 1869 | H. Bates, D.L. Bates | Improved drill | |
 | 117,896 | Aug. 08, 1871 | J. Lemman | Improvement in drilling-machines | |