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Structure type:
Archive document
Title:
Regelung der Stimmtonfrage
Persons and corporations:
Physikalisch-Technische Reichsanstalt <Berlin>
Place of publication:
Berlin
Date:
4.10.1938
Structure type:
Archive document
Title:
Regelung der Stimmtonfrage
Persons and corporations:
Ganse, Albrecht
Place of publication:
Berlin
Date:
20.5.1937-23.9.1937