Zachary L. Steinbock,Sean M. Matson,R. Scott Foresman,Kevin C. Hutchinson
申请号：
US14143867
公开号：
US09220647B1
申请日:
2013.12.30
申请国别(地区):
US
年份:
2015
代理人:
摘要：
The present invention is a rigid collapsible litter having a base and a plurality of collapsible rib members. The rib members are capable of being folded or collapsed in a first direction while remaining rigid in a second direction to support weight placed on the litter.
