Photo . Negative No. CS/6972. Monochrome 4" x 6"
- PART OF:
- Photos of valve assembley
- Made:
- 1948-1978
- part of archive:
- National Physical Laboratory Archive
- maker:
- National Physical Laboratory
.
Details
- Identifier:
- NPL/K13/13/21
- Access:
- Open Access
- copyright:
-
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