Invention First Confirmed First Confirmed or Discoyery Use in China Use in Europe1. squre-pallet chain pump 189 1672 龙骨风车2. edge-runner mill 轮转 170 1607 磨(坊)
文摘Invention First Confirmed First Confirmed or Discoyery Use in China Use in Europe1. squre-pallet chain pump 189 1672 龙骨风车2. edge-runner mill 轮转 170 1607 磨(坊)