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Howard Johnson, Permanent Magnet Motor, 1985, (patent expired 2006) (opens in new tab)

(rexresearch.com)

2 pointsthro18mo ago1 comments

1 comments

1 comments · 1 top-level

thro1OP8mo 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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