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| 005 | 20190814091235.0 | ||
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| 008 | 190702s1986 xxu||||| |||| 00| 0 d | ||
| 245 | 0 | 0 |
_aMethodische Hefte : _bH.13 |
| 264 | 1 |
_aBudapest: _bOTH, _c1986 |
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| 650 |
_aPatentwesen _93556 |
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| 650 |
_aPatentdokumentation _93575 |
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_c7817 _d7817 |
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