Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4474410 | Power-driven, wedge-operated rock splitter | Koji Ogaki, Shigetake Akanuma, Yoshitaka Ojiro, Shigeru Harada | 1984-10-02 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4474410 | Power-driven, wedge-operated rock splitter | Koji Ogaki, Shigetake Akanuma, Yoshitaka Ojiro, Shigeru Harada | 1984-10-02 |