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Usually with furniture there are forerunner designers / manufacturers that establish an innovation, then all mass manufacturers copy it a decade or two or five later.

For example the cantilever laminated wood frame chair made an appearance already in the 1930s. https://www.artek.fi/en/products/armchair-401

Cantilever steel tube + cane chair Cesca from 1928. https://en.wikipedia.org/wiki/Cesca_Chair