Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Sir WG Armstrong Whitworth and Co Ltd
Original Assignee
Sir WG Armstrong Whitworth and Co Ltd
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Filing date
Publication date
Application filed by Sir WG Armstrong Whitworth and Co LtdfiledCriticalSir WG Armstrong Whitworth and Co Ltd
Application grantedgrantedCritical
Publication of FR503244ApublicationCriticalpatent/FR503244A/en
F41G5/00—Elevating or traversing control systems for guns
F41G5/08—Ground-based tracking-systems for aerial targets
FR503244A1917-03-121917-03-12
Improved method and apparatus for measuring angular velocities and specially intended for directing artillery fire
ExpiredFR503244A
(en)