参考文献:
Al-Awar, Rima Salim Hecker, Kyle Andrew Ray, James Edward Huang, Jianping Joseph, Sajan Li, Tiechao Paal, Michael Rathnachalam, Radhakrishnan Shih, Chuan Waid, Philip Parker Zhou, Xun Zhu, Guoxin Patent: US23/22926 A, 23 Location in patent: Page 25 US 2322926 A