DK67568C -
Anchor device by an electromagnetic, especially an electroacoustic device, for example for recording or reproducing soundtracks.
- Google Patents
Anchor device by an electromagnetic, especially an electroacoustic device, for example for recording or reproducing soundtracks.
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Application filed by Electrical Fono Films Co AsfiledCriticalElectrical Fono Films Co As
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Publication of DK67568CpublicationCriticalpatent/DK67568C/en
DK340244A1944-05-121944-12-14
Anchor device by an electromagnetic, especially an electroacoustic device, for example for recording or reproducing soundtracks.
DK67568C
(en)