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Expired
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William Boardman
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Individual
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Individual
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Publication of GB190714419ApublicationCriticalpatent/GB190714419A/en
14,419. Boardman, W. June 22. Sights.-A graduated rod C attached to the rear of the gun A has one end C<1> moving over an horizontal graduated arc E<1> attached to the gun support. The angles of elevation and training, read off by sighting tactical points in the daytime, enable the gun to be laid at night.
GB190714419D1907-06-221907-06-22Night Firing Director for Machine Guns and the like.
ExpiredGB190714419A
(en)