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| Patents for Patrick H. Lawler | |||||
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| Number | Date | Patentee | Title | Type | |
| 76,782 | Apr. 14, 1868 | P.H. Lawler | Improvement in shingle machines | shingle machines | |
| 85,104 | Dec. 22, 1868 | P.H. Lawler, W.H. Gibson | Improved gas-machine | ||
| 106,260 | Aug. 09, 1870 | J.B. Dougherty | Improvement in machine for manufacturing hoops | hoop making machines | |