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| Patents for E. R. Case | |||||
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| Number | Date | Patentee | Title | Type | |
| CA-39,771 | Aug. 10, 1892 | W.H. Law | Power hammer | drop hammers | |
| CA-46,715 | Aug. 02, 1894 | R.H. Verity | Jaws and Clevis For Plows | clevises | |
| CA-49,976 | Sep. 13, 1895 | W.H. Law | Travelling swing drill | portable metal drilling machines | |
| CA-65,452 | Dec. 21, 1899 | W.H. Law | Power hammer | drop hammers | |