Catalogue description Final Report - Parallel Grenade. Report on the design of an attachment for a US Navy...
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Reference: | HW 25/30 |
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Description: |
Final Report - Parallel Grenade. Report on the design of an attachment for a US Navy (Op-20-G) bombe used for breaking ENIGMA messages |
Date: | 1944 Mar 25 - 1944 Jun 15 |
Held by: | The National Archives, Kew |
Former reference in its original department: | M-252 |
Legal status: | Public Record(s) |
Closure status: | Open Document, Open Description |
Access conditions: | Retained Until 2004 |
Record opening date: | 29 June 2004 |
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