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| 005 | 20190814161439.0 | ||
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| 008 | 190702s xxu||||| |||| 00| 0 d | ||
| 100 | 1 | _aWalker, Richard D. | |
| 245 | 0 | 0 | _aPatents as a source of scientific and technical informationin dveloping countries |
| 650 |
_aEntwicklungsländer _91028 |
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| 650 |
_aPatentschutz _93570 |
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| 650 |
_aTechnologie _94394 |
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| 650 |
_aInformation _92006 |
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| 773 | 0 |
_aWPI. 19(1988),1,5-10. _wz_WPI |
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| 999 |
_c12559 _d12559 |
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