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| Patents for John Willis Griffiths | |||||
| Number | Date | Patentee | Title | Type | |
| 51,826 | Jan. 02, 1866 | J.W. Griffiths | Improvement in wood-bending machines | wood bending machines | |
| 51,827 | Jan. 02, 1866 | J.W. Griffiths | Improvement in wood-bending | wood bending machines | |