AU1244047A - Improvements in or relating to oscillatory systems more particularly an electrodynamic system for example for microphone, loudspeakers pickups, and so forth, provided witha diaphragm
- Google Patents
Improvements in or relating to oscillatory systems more particularly an electrodynamic system for example for microphone, loudspeakers pickups, and so forth, provided witha diaphragm
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Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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Publication of AU143767B2publicationCriticalpatent/AU143767B2/en
Publication of AU1244047ApublicationCriticalpatent/AU1244047A/en
AU12440/47A1947-05-28Improvements in or relating to oscillatory systems more particularly an electrodynamic system for example for microphone, loudspeakers pickups, and so forth, provided witha diaphragm
ExpiredAU143767B2
(en)
Improvements in or relating to oscillatory systems more particularly an electrodynamic system for example for microphone, loudspeakers pickups, and so forth, provided witha diaphragm
Improvements in or relating to oscillatory systems more particularly an electrodynamic system for example for microphone, loudspeakers pickups, and so forth, provided witha diaphragm