Combined plow and film layer
USD300142S · kind S · design
1Cited by
5References
1Claims
0Family size
Inventor
Key dates
| Filing date | Apr 14, 1986 |
| Grant date | Mar 7, 1989 |
| Priority date | — |
| Expiry date | Mar 7, 2003 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.