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  1. 41
    Published 1969
    Subjects ...United States. Navy Optical instrument repairers Handbooks, manuals, etc....
    Book
  2. 42
    Subjects
    Book
  3. 43
    Published 1996
    Subjects
    Journal
  4. 44
  5. 45
    by Stafford, Barbara Maria, 1941-
    Published 2001
    Subjects
    Book
  6. 46
    Published 1954
    Subjects
    Journal
  7. 47
    by Unsworth, Charles P.
    Published 2006
    Subjects
    Book
  8. 48
    Published 2007
    Subjects ...Optical instruments Safety measures Standards Australia....
    The electronic version of this standard may be found at the Standards NZ website.
    Book