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| Patents for Hollands Manufacturing Co. | |||||
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| Number | Date | Patentee | Title | Type | |
| 486,235 | Nov. 15, 1892 | A.N. Parnall | Pipe-Wrench | pipe wrenches | |
| 597,681 | Jan. 18, 1898 | M.G. Lewis | Vise for holding bicycle frames | bench vises | |
| 600,830 | Mar. 15, 1898 | R.B. Hough | Pipe-vise | vises | |
| D29,338 | Sep. 13, 1898 | R. Hough | Design For A Wrench-Jaw | wrench jaw components | |
| 664,361 | Dec. 18, 1900 | H.F. Renner | Pipe-vise | pipe and chain vises | |
| 680,439 | Aug. 13, 1901 | H.F. Renner | Bench-vise | bench vises | |
| 700,087 | May 13, 1902 | H.F. Renner | Pipe Wrench | pipe wrenches | |