Describes various types. (2000 w.) (No. 16768 D)
Frequency meters
Die elektrischen Frequenzmesser
1910
Ills.
Article (Journal)
German
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Ultrasonic meters provide alternative to orifice meters
Tema Archive | 1999
|Engineering Index Backfile | 1899
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Tema Archive | 1983
|Online Contents | 2001
Tema Archive | 1983
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