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      Tauchvorschrift für Unterseeboote M. Dv. Nr. 381 | 
    
    
      | Diving Regulations for U-boats, Navy Off. Inst. No. 381 | 
    
     
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      U Bootskunde für U 
        Boote Bauart VII C, Stand vom 15.07.40, M.Dv. 371, 181 | 
    
     
      | U-boat Information for U-boat Type 
        VII C, Effective 15.07.40, Navy Off. Inst. 371, 181  | 
    
     
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      U Bootskunde für U Boote Bauart 
        XB, M.Dv. 371, 184 | 
    
     
      | U-boat Information for U-boat Type 
        XB, Navy Off. Inst. 371, 184 | 
    
     
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      Skizzenbuch für das Maschinenpersonal für U Boote Bauert VII C, Band M Schiffs- und Maschinenbetrieb | 
    
    
      | Sketchbook for the Technical Personnel for U-boat Type VII C, Volume M - Ship and Machinery Operation | 
    
    
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      Skizzenbuch für das Maschinenpersonal für U Boote Bauert IX C/40, Band M Schiffs- und Maschinenbetrieb | 
    
    
      | Sketchbook for the Technical Personnel for U-boat Type IC C/40, Volume M - Ship and Machinery Operation | 
    
    
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      G7a Torpedo drawings | 
    
     
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