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Catalogue description Punched card method of electro-mechanical control. Includes 1 photograph depicting:...
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| Reference: | ADM 259/619 |
|---|---|
| Description: |
Punched card method of electro-mechanical control. Includes 1 photograph depicting: Anti-Submarine Experimental Establishment: punched card method of electro-mechanical control: card sensing machine - general arrangement. Dated 1944. |
| Date: | 1944 |
| Held by: | The National Archives, Kew |
| Former reference in its original department: | IR 186 |
| Legal status: | Public Record(s) |
| Closure status: | Open Document, Open Description |
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