E01B 2204/04
Direct mechanical or chemical fixing of sleepers onto underground
E01B2204/04 (Direct mechanical or chemical fixing of sleepers onto underground) appears on 1 US grants and 0 published applications in this corpus.
Search patents in E01B- Granted patents
- 1
- Published applications
- 0
- Assignees
- 2
- Inventors
- 5
- Latest grant
- 24 Mar 1987
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| Year | Granted patents | Published applications |
|---|---|---|
| 1987 | 1 | 0 |
By publication year. Applications have been published since 2001.
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