Official catchword index to the third edition (1979) of the International Patent Classification /
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| Corporate Author: | |
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| Format: | Book |
| Language: | English |
| Published: |
München :
C. Heymans Verlag KG,
c1979.
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| Physical Description: | 308 p. ; 24 cm. |
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| ISBN: | 3452187071 |