Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D706844 | Percussion drill | Xiao Qiu, Yan Wohlhauser | 2014-06-10 |
AS
Andreas Spenke
Overall (All Time): #3,110,389 of 4,157,543Top 75%
1
Patents All Time