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3. 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

Author(s):
Hatch, Theodore F., author
Brackett, Frederick S. (Frederick Sumner), 1896-1988, author
Horvath, Steven M., author
Publication:
Fort Knox, Kentucky : Armored Medical Research Laboratory, 28 March 1945
Subject(s):
Military Personnel -- education
Weapons
Equipment and Supplies
United States

4. 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

Author(s):
Hatch, Theodore F., author
Brackett, Frederick S. (Frederick Sumner), 1896-1988, author
Horvath, Steven M., author
Publication:
Fort Knox, Kentucky : Armored Medical Research Laboratory, 22 March 1945
Subject(s):
Telescopes
Military Personnel -- education
Weapons
United States

5. Third partial report on Project no. 37 -- study of errors in field artillery practice: subject: analysis of requirements for eliminating errors in laying guns in elevation

Author(s):
Hatch, Theodore F., author
Brackett, Frederick S. (Frederick Sumner), 1896-1988. author
Horvath, Steven M., author
Publication:
Fort Knox, Kentucky : Armored Medical Research Laboratory, 6 April 1945
Subject(s):
Military Personnel -- education
Weapons
United States

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