Plant patent directory.
| Corporate Author: | |
|---|---|
| Format: | Book |
| Language: | English |
| Published: |
Washington, D.C. :
American Association of Nurserymen,
[1990]
|
| Subjects: |
| Item Description: | Issued by the American Association of Nurserymen and the National Association of Plant Patent Owners.--Pref. "Covers plant patents granted by the United States Patent and Trademark Office (PTO) from 1931 through 1989."--Pref. |
|---|---|
| Physical Description: | 1 volume (various pagings) ; 28 cm. |