| Original language | American English |
|---|---|
| Patent number | EP1467611 |
| IPC | E01H 13/ 00 A I |
| Priority date | 25/12/02 |
| State | Published - 20 Oct 2004 |
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Research output: Patent
| Original language | American English |
|---|---|
| Patent number | EP1467611 |
| IPC | E01H 13/ 00 A I |
| Priority date | 25/12/02 |
| State | Published - 20 Oct 2004 |