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| Patents for Wilhelm Jardh | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,577,317 | Mar. 16, 1926 | W. Jardh | Belt Tightener with Rapid Belt Tension Release | metalworking machine mechanisms | |
| 1,614,771 | Jan. 18, 1927 | J.C. Axelson, W. Jardh | Pump having standing-valve puller | oil well pumps | |
| 1,712,766 | May 14, 1929 | W. Jardh | Geared Headstock for Lathes | metal lathe accessories and attachments | |