Feng Chin-Hsing

UN Unknown: 4 patents #4,220 of 83,584Top 6%

📍 Zhubei City, TW: #657 of 1,506 inventorsTop 45%

Overall (All Time): #2,292,797 of 4,157,543Top 60%

Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
5293356	Vocal reporting device for pointer type timers with photoelectric calibration device	—	1994-03-08
5239523	Vocal reporting device for pointer type timers with accumulative timing transformation	—	1993-08-24