Changes in speech privacy units as released to the Army by RCA Laboratories OSRD-Div.13-301.1-M4 OEMsr-592

Changes in speech privacy units as released to the Army by RCA Laboratories

OSRD-Div.13-301.1-M4 OEMsr-592

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Material Type: 規格・テクニカルリポート類
Title: Changes in speech privacy units as released to the Army by RCA Laboratories
Author/Editor: Bedford, A. V
Publication Date: 1944
Publication Date (W3CDTF): 1944
Extent: microfilm
Note (Material Type): [microform]
Report No.: テクニカルリポート番号 : OSRD-Div.13-301.1-M4
テクニカルリポート番号 : OEMsr-592
Holding library: 国立国会図書館
Call No.: F-OS-184
Data Provider (Database): 国立国会図書館 : 国立国会図書館蔵書
https://ndlsearch.ndl.go.jp
Bibliographic ID (NDL): 000006077404
http://id.ndl.go.jp/bib/000006077404
Bibliographic Record Category (NDL): 291