Warren Abraham Wartell,Barry Stewart Brown,Gene Lee Armstrong
申请号:
US13962594
公开号:
US20140058291A1
申请日:
2013.08.08
申请国别(地区):
US
年份:
2014
代理人:
摘要:
An apparatus includes a back plate having an upper surface and a lower surface, a body contact device connected to the back plate, and a measurement device connected to the body contact device. The body contact device resists movement in a direction substantially perpendicular to the upper surface of the back plate while the measurement device measures a force applied to the body contact device.