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A pneumatic or stem powered anti-aircraft developed and used during World War Two.

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  • A pneumatic or stem powered anti-aircraft developed and used during World War Two. (en)
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  • A Holman Projector prepared for early trials at Porthtowan. A crude anti-aircraft sight is fitted to the mortar barrel. Morris Oram firing. (en)
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  • Morris Oram (en)
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  • 300 (xsd:integer)
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  • YES (en)
dbp:name
  • Holman Projector (en)
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  • United Kingdom (en)
dbp:type
  • Grenade Projector (en)
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  • Holman Projector (en)
  • ホールマン投射機 (ja)
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  • Holman Projector (en)
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