Development and use of patent classification systems
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| Corporate Author: | |
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| Format: | Book |
| Language: | English |
| Published: |
Washington,
For sale by the Supt. of Docs., U.S. Govt. Print. Off.,
1966
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| Subjects: | |
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Government Documents
| Call Number: |
GOVDOCS C 21.14/2:C 56
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| • | Available |