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summary
Chronometer; wrist chronometer with piezo-electric oscillating system, designation, requirements, testing. (Chronometer; Armbandchronometer mit piezoelektrischem Schwingsystem, Begriffe, Anforderungen, Prüfung.)
Details
Publisher
DIN
File size
496.73 KB
Pages
3
Format
PDF
Publication date
1978-12-01