参考文献:
Gruenenthal GmbH FRANK, Robert BAHRENBERG, Gregor CHRISTOPH, Thomas LESCH, Bernhard LEE, Jeewoo Patent: US1/996 A1, 1 Location in patent: Paragraph 76
参考文献:
GRÜNENTHAL GMBH FRANK, Robert BAHRENBERG, Gregor CHRISTOPH, Thomas LESCH, Bernhard Patent: WO1/1815 A1, 1 Location in patent: Page/Page column 15 WO 1/1815 A1