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Churchill/MCRA 5 contains:
<-- See earlier
38 Royal Commission on Awards to Inventors: claims of Macrae and others in respect of Switches 1, 2, 3, 8, 12, 13
39 Royal Commission on Awards to Inventors: claims of Macrae and others in respect of Switches 1, 2, 3, 8, 12, 13 and 'L' Delay
40 Switches 1, 2, 3, 8, 12, 13
41 PIAT: Nose Initiation
42 PIAT: Centre Cocking
43 PIAT: Cartridge
44 Igniters, Detonators and Signal Flashes
45 35 lb A/S Bomb Release Gear
46 Miscellaneous patent claim papers
47 Patent claims: general
48 Correspondence with solicitor
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The Papers of Colonel R S Macrae

Title Switch no. 9 ('L' Delay)
Reference MCRA 5/33
Covering Dates Apr 1940-Oct 1953
Extent and Medium 1 file
Content and context

Notes and correspondence for Macrae's patent claim on the delayed action fuse, with full specification.

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