Announcement of changes in electrical and photometric units. Issued May 15, 1947

An edition of Announcement of changes in electrical and photometric units. Issued May 15, 1947 (1948)

Announcement of changes in electrical and photometric units. Issued May 15, 1947

By United States. National Bureau of Standards.

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Publish Date

1948

Publisher

U.S. Govt. Print. Off.

Language

eng

Pages

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