Patents for Inventions
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| Corporate Author: | |
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| Format: | Book |
| Language: | English |
| Published: |
Calcutta
Manager of Publications
1963
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| Subjects: | |
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Add Tag | Item Description: | Abridgements of Specifications 4,001-50,000 |
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| Physical Description: | 95p. |
Patents for inventions: abridgments of specifications 40001-50000