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| 100 | 1 | _aKronz, Hermann | |
| 245 | 0 | 0 | _aPatent Statistics as Indicators of Technological and Commercial trends in the member States of the European Communities |
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_aPatentwesen _93556 |
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_aStatistik _94239 |
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_aWPI. 2(1980),1,4-12. _wz_WPI |
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