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| Patents for C. Van Haagen & Co. | |||||
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| Number | Date | Patentee | Title | Type | |
| 108,305 | Oct. 11, 1870 | C. Van Haagen | Improved Planing Mechanism | metal planers | |
| 128,190 | Jun. 18, 1872 | A. Van Haagen | Improvement in Planing Machines | metal planers | |
| 178,209 | May 30, 1876 | C. Van Haagen | Mechanism For Reversing the Motion of the Beds of Metal Planing Machines | metal planers | |