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| Patents for John J. Tighe | |||||
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| Number | Date | Patentee | Title | Type | |
| 756,725 | Apr. 05, 1904 | H.S. Spencer | Hollow-chisel mortising-machine | mortising machines | |
| 767,504 | Aug. 16, 1904 | H.S. Spencer | Mortising-machine | mortising machines | |