MIL-C-27221 › Complete Document History
Crystal Unit, Quartz, Cr-73/U (Use MIL-C-3098/54)
Obsolete Revision Information: |
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NOT - CRYSTAL UNIT, QUARTZ, CR-73/U - Feb. 8, 1968
BASE - CRYSTAL UNIT, QUARTZ, CR-73/U - Jan. 1, 1960 |