E01B 25/20
Switches
Official title: Switches; Crossings
E01B25/20 (Switches) appears on 1 US grants and 1 published applications in this corpus.
Search patents in E01B- Granted patents
- 1
- Published applications
- 1
- Assignees
- 0
- Inventors
- 2
- Latest grant
- 28 Aug 2007
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| Year | Granted patents | Published applications |
|---|---|---|
| 2006 | 0 | 1 |
| 2007 | 1 | 0 |
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