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| Patents for Henry R. Heyl | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 126,183 | Apr. 30, 1872 | J. Charlton | Improvement in couplings for shaftings | |
 | 195,603 | Sep. 25, 1877 | H.R. Heyl | Improvement in devices for inserting metallic staples | |
 | RE9,803 | Jul. 12, 1881 | H.R. Heyl | Device for inserting metallic staples | |
 | 1,270,484 | Jun. 25, 1918 | H.G. Bonney | Wrench | |