YM

Yeh Mu-Shan

📍 Wang'an Town, TW: #231 of 480 inventorsTop 50%
Overall (All Time): #3,999,379 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4602889 Adjustable knuckle joint device for folding ladders — 1986-07-29