Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Circular of the Bureau of Standards no. 601::recorder survey- recording surfaces and marking methods

Published

Author(s)

George Keinath
Citation
- NBS CIRC 601
Report Number
NBS CIRC 601

Citation

Keinath, G. (1959), Circular of the Bureau of Standards no. 601::recorder survey- recording surfaces and marking methods, , National Institute of Standards and Technology, Gaithersburg, MD, [online], https://doi.org/10.6028/NBS.CIRC.601 (Accessed May 4, 2024)
Created January 1, 1959, Updated May 19, 2023