Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4815431 | Oil heating apparatus for internal combustion engine | Hiroshi Yorita, Toshihiko Igashira, Takeshi Tanaka, Masao Wakayama, Takashi Sato +1 more | 1989-03-28 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4815431 | Oil heating apparatus for internal combustion engine | Hiroshi Yorita, Toshihiko Igashira, Takeshi Tanaka, Masao Wakayama, Takashi Sato +1 more | 1989-03-28 |