Revision 20.12.1963 on Page 3 revised 19.12.1963.
- Made:
- 1963-12-19
- part of archive:
- National Physical Laboratory Archive
- maker:
- National Physical Laboratory
Details
- Identifier:
- NPL/J1/1/89
- Access:
- Open Access
- rights:
- Copies may be supplied in accordance with current copyright legislation and Science Museum Group terms and conditions