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| 005 | 20190814161225.0 | ||
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| 008 | 190702s xxu||||| |||| 00| 0 d | ||
| 100 | 1 | _aJonge, A. P. de | |
| 245 | 0 | 0 | _aStatistical Evolution of patent applications on inventions in a field of coherent subjects as a base for R & D policy |
| 650 |
_aStatistik _94239 |
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| 650 |
_aPatentwesen _93556 |
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| 773 | 0 |
_aWPI. 4(1982),2,56-59. _wz_WPI |
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| 999 |
_c8367 _d8367 |
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