Letter from Albert M. Grass to William Grey Walter, 21 January 1939
- PART OF:
- Papers held by Dr Ray Cooper
- Made:
- 1939-01-21
Discusses order and installation of a four channel ink-writing oscillograph.
Details
- Extent:
-
185
260
- Identifier:
- BURD/A/06/093a
- Access:
- Open Access
- copyright:
-
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