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summary
Chronometer; wrist-chronometer with frequency of oscillating system <= 1000 Hz, designation, requirements, testing. (Chronometer; Armbandchronometer mit einer Frequenz des Schwingsystems <= 1000 Hz, Begriff, Anforderungen, Prüfung.)
Details
Publisher
DIN
File size
398.74 KB
Pages
3
Format
PDF
Publication date
1980-10-01