Difference between revisions of "GR-4"
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==References== | ==References== | ||
* TM 11-439 Flash Ranging Set GR-4-A (1 November 1944); 58 pages | * TM 11-439 Flash Ranging Set GR-4-A (1 November 1944); 58 pages | ||
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| + | * [[File:SIG 8-GR-4.pdf]] | ||
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* [[File:SIG 7 8 GR-4.pdf]] | * [[File:SIG 7 8 GR-4.pdf]] | ||