Record revealed
Report on the British Indian Army, 1943
Piece
Catalogue reference: AVIA 8/105
This record is about the Improvements in valves for the envelopes of airships, kite-balloons and the like... dating from 1916 - 1933 in the series Air Ministry and successors: Inventions, and Research and Development, Registered.... It is held at The National Archives, Kew.
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Improvements in valves for the envelopes of airships, kite-balloons and the like by Lt. R V Southwell: patent application 13762/16
AVIA 8
See the series level description for more information about this record.
Records created or inherited by the Ministry of Aviation and successors, the Air...
Air Ministry and successors: Inventions, and Research and Development, Registered...
Improvements in valves for the envelopes of airships, kite-balloons and the like...
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