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| Patents for Nels J. Billstrom | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 740,219 | Sep. 29, 1903 | N.J. Billstrom | Carrier for gluing-clamps | |
| 928,930 | Jul. 27, 1909 | N.J. Billstrom | Feeder for jointers and surface-planers | ||
 | 1,772,514 | Aug. 12, 1930 | J. Hoogerhyde | Four-way blocking clamp | |
 | 2,321,644 | Jun. 15, 1943 | E.J. Billstrom, A.W. Redin | Glue clamp carrier | |