D01F 2/20
For the manufacture of hollow threads
Official title: for the manufacture of hollow threads
D01F2/20 (For the manufacture of hollow threads) appears on 2 US grants and 0 published applications in this corpus.
Search patents in D01F- Granted patents
- 2
- Published applications
- 0
- Assignees
- 2
- Inventors
- 2
- Latest grant
- 19 Dec 1978
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 2 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
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By later US patents