Howard Johnson, Permanent Magnet Motor, 1985, (patent expired 2006) (rexresearch.com) 2 points by thro1 9mo ago ↗ HN
[–] thro1 9mo ago ↗ ( https://patents.google.com/patent/US4877983A/en expired 2006, https://www.freepatentsonline.com/4877983.html )Is that similar: https://news.ycombinator.com/item?id=45600132 ?
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[ 2.2 ms ] story [ 12.2 ms ] threadIs that similar: https://news.ycombinator.com/item?id=45600132 ?