David J. Friedman,Elizabeth S. Friedman,Daniel O. Hogenauer,Eric A. Haddad,Bryce G. Rutter,Max W. Ryan,Tucker P. Brown
申请号：
US16529441
公开号：
US20200069866A1
申请日:
2019.08.01
申请国别(地区):
US
年份:
2020
代理人:
摘要：
An indicator includes a body having a first end, a second end opposite the first end, a first surface and a second surface opposite the first surface, each of which extends from the first end to the second end, and an aperture extending from the first end to the second end, the aperture being sized and shaped to receive a tube, and at least one of the first and second surfaces including a haptic signature formed thereon.
