Issued Patents 1982
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4315158 | Photoelectric smoke sensing chamber and smoke sensor box | Takao Kakigi | 1982-02-09 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4315158 | Photoelectric smoke sensing chamber and smoke sensor box | Takao Kakigi | 1982-02-09 |