Is Beijing Reed sds non-surgical spinal decompression really copying DRX9000 from the United States, otherwise, how can the patent right for appearance be invalid?

Since the patent right of appearance has been cancelled, it means that the appearance of the product has existed before, and it is likely to be copied. What's more, it involves patent infringement. However, I know that there is an independent research and development company in China, which seems to be called Zhengzhou Longfei Medical. You can pay attention. Their company seems to have all kinds of patents. I hope it can be adopted and help you.