| Author | United States. Patent Office |
|---|---|
| LoC No. | 15020447 |
| Title | The Classification of Patents |
| Language | English |
| LoC Class | T: Technology |
| Subject | Patents -- United States |
| Category | Text |
| EBook-No. | 22685 |
| Release Date | Sep 20, 2007 |
| Copyright Status | Public domain in the USA. |
| Downloads | 18 downloads in the last 30 days. |
| Price | $0.00 |
