Specification for essential characteristics of 35mm microfilm reading apparatus.
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| Corporate Author: | |
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| Format: | Book |
| Language: | English |
| Published: |
London :
The Institution,
1967.
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| Series: | B.S. (Series) ;
BS 4191: 1967. |
| Subjects: |
| Item Description: | On cover: Metric units. |
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| Physical Description: | 7 p. |