DT

Dmitri A. Trifonov-Yakovlev

Overall (All Time): #3,723,524 of 4,157,543Top 90%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5662175 Sea water pile hammer Don C. Warrington, Vladimir A. Nifontov, Lev V. Erofeev 1997-09-02