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Catalogue description Lang, F: method of regulating safety and vent valve devices for air cells of certain...
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| Reference: | J 105/6 |
|---|---|
| Description: |
Lang, F: method of regulating safety and vent valve devices for air cells of certain diesel engines (421163/1934) |
| Date: | 1935 |
| Held by: | The National Archives, Kew |
| Former reference in its original department: | 36/1935 |
| Legal status: | Public Record(s) |
| Closure status: | Open Document, Open Description |
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