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Start Over You searched for: Authors Brackett, Frederick S. (Frederick Sumner), 1896-1988, author Remove constraint Authors: Brackett, Frederick S. (Frederick Sumner), 1896-1988, author Formats Text Remove constraint Formats: Text Copyright Public domain Remove constraint Copyright: Public domain Genre Technical Report Remove constraint Genre: Technical Report
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6. Fourth partial report on Project no. 37 -- study of errors in field artillery practice: subject: an analysis of the sources of error in the use of the aiming circle and development of an improved instrument

nlm:nlmuid-101678214-bk

8. Second partial report on Project no. 37 -- study of errors in field artillery practice: subject: an analysis of the sources of error in the use of the panoramic telescope M12 and development of principles of design for an improved instrument

nlm:nlmuid-101678178-bk