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| Patents for H. E. Hindmarsh | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 183,096 | Oct. 10, 1876 | J. Yerkes | Improvement in the Manufacture of Adz-Eye Hammers | |
 | 184,692 | Nov. 28, 1876 | J.G. Berger | Improvement in sawing-machines | |
 | 189,265 | Apr. 03, 1877 | J.C. Richardson | Improvement in Gimlets and Twist-Drills | |
 | 195,603 | Sep. 25, 1877 | H.R. Heyl | Improvement in devices for inserting metallic staples | |