Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4555064 | Pebble-stone crushing device for use in excavator for laying pipelines underground | Yasuo Okubo, Hiroshi Saito, Shigeru Harada | 1985-11-26 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4555064 | Pebble-stone crushing device for use in excavator for laying pipelines underground | Yasuo Okubo, Hiroshi Saito, Shigeru Harada | 1985-11-26 |