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| 005 | 20190814161223.0 | ||
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| 008 | 190702s xxu||||| |||| 00| 0 d | ||
| 100 | 1 | _aJanke, Lothar | |
| 245 | 0 | 0 | _aDevelopment and use of an efficient patent information system in the German Democratic Republic |
| 650 |
_aPatentdokumentation _93575 |
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| 650 |
_aDeutschland 〈DDR〉 _9Deutschland 〈DDR〉 |
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| 773 | 0 |
_ain. WPI. 11(1989),4,208-210. _wz_WPI |
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| 999 |
_c8217 _d8217 |
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