Aalto has a patent for producing the bent wood legs used in his furniture & should look just like the drawing.
If the legs of the furniture in question does not match Aalto's patent, these are just look alikes or in the style of & has nothing to do with Aalto.
Products marked "Made in Occupied Japan" were for export items sold in the US usually at stores like Woolworths & similar stores right after WWII (mid 1940's to early 1950's). Most of the products I have encountered in the past were all in the style of another designer/ manufacturers work.
Aalto has only one building in the US, the Baker student housing in the MIT campus in Cambridge, MA, the only Aalto US connection that I am aware of.
https://www.archdaily.com/61752/ad-classics-mit-baker-house-dormitory-al...
In 2010, LAMA listed a HM Eames LCW that according to the auction listing was branded with Woodpecker Industries Los Angeles. I assumed it was owned by & not sold by that company.
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