Rolls-Royce Archives
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From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Cross-reference note regarding further information on Tungsten contact points.

Identifier  ExFiles\Box 35\6\  scan 437
Date  31th December 1930
  
X.2894
31.12.30.

For further matter relating to
Tungsten contact points see X.6057.
  
  


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