BS-448-1 › Complete Document History
Dimensions of electronic tubes and valves
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1981 EDITION - REAFFIRMED IN 1988 - Jan. 1, 1981
AMD 5998 - AMENDMENT 1 - Sept. 1, 1992 |
Obsolete Revision Information: |
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1953 EDITION - OBSOLETE EDITION - Jan. 1, 1953
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