Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5680827 | Sewing machine having lower-thread tension changing device | Masao Ogawa | 1997-10-28 |
MS
Minoru Sakanobe
Overall (1997): #102,083 of 185,788Top 55%
1
Patents 1997