Pi-Ying Cheng (Inventor)
Research output: Patent
}
ASSISTANT APPARATUS FOR SURMOUNTING BARRIER. / Cheng, Pi-Ying (Inventor).
TY - PAT
T1 - ASSISTANT APPARATUS FOR SURMOUNTING BARRIER
AU - Cheng, Pi-Ying
PY - 2010/8/31
Y1 - 2010/8/31
M3 - Patent
M1 - US 7,784,569 B2
ER -