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Churchill/MCRA 5 contains:
<-- See earlier
31 Switch no. 9 ('L' Delay)
32 Projectiles, fuses, time-delay action mechanism
33 Switch no. 9 ('L' Delay)
34 Switch no. 9 ('L' Delay)
35 T V Switch: long delay, short delay
36 Switch no. 12 (Anti-Lift Device)
37 Switch no. 13 (Universal Switch)
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
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The Papers of Colonel R S Macrae

Title Switch no. 12 (Anti-Lift Device)
Reference MCRA 5/36
Covering Dates Sep 1944-Jan 1947
Extent and Medium 1 file
Content and context

Correspondence on Macrae's patent application for a device preventing the removal of mines.

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