Difference between revisions of "SB-18"
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(Created page with "small unit switchboard. ==References== * SCTL JAN of 1945") |
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| − | small unit switchboard. | + | small unit switchboard. morphed into [[SB-993]] |
==References== | ==References== | ||
* SCTL JAN of 1945 | * SCTL JAN of 1945 | ||