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| 001 | 21730 | ||
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| 005 | 20190814161438.0 | ||
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| 008 | 190702s xxu||||| |||| 00| 0 d | ||
| 100 | 1 | _aDe Vries, S. | |
| 245 | 0 | 0 | _aThe new,fourth edition of the IPC |
| 650 |
_aInternationale Patentklassifikation _92098 |
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| 773 | 0 |
_aWPI. 6(1984),2,58-62. _wz_WPI |
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| 999 |
_c12542 _d12542 |
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