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Young-Chin Yeh

Overall (All Time): #1,629,437 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
6098778 Coin collecting mechanism with top coin slot and coin return function — 2000-08-08
5975276 Comparative type detecting means for a coin-collecting mechanism — 1999-11-02
5697484 Electronic coin-collecting mechanism — 1997-12-16