Completion report on portable polar chart recorder and servo mechanisms
Publisher: Underwater Sound Laboratory, Harvard University
Published: 1945
Place of publication: Cambridge, Mass
Language: eng
Number of pages: 47
Subjects: Sound; Measurement; Equipment and supplies; Supplies and stores; United States. Navy
Other titles: Portable polar chart recorder
Notes: At head of title: Office of Scientific Research and Development, National Defense Research Committee, Division 6--Section 6.1.

"Confidential."

"Unclassified by NUSL, list no. 464, dated 7/9/47"--Stamp on cover.

"Submitted for Harvard University under contract OEMsr-287 by F.V. Hunt."

"September 15, 1945."

Includes bibliographical references (p. 45-47).