E21D 9/0609
With means for applying a continuous liner
Official title: {with means for applying a continuous liner, e.g. sheets of plastics, between the main concrete lining and the rock}
E21D9/0609 (With means for applying a continuous liner) appears on 1 US grants and 0 published applications in this corpus.
Search patents in E21D- Granted patents
- 1
- Published applications
- 0
- Assignees
- 2
- Inventors
- 4
- Latest grant
- 28 Jun 1994
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| Year | Granted patents | Published applications |
|---|---|---|
| 1994 | 1 | 0 |
By publication year. Applications have been published since 2001.
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