Abstract
TOWARDS the end of last year I got constructed a telephonic apparatus which gives results much superior to those of the ordinary Bell telephone. Its construction is based on four principles, two of which have not yet been applied to telephones:—
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OCHOVOWICZ, J. The Microtelephone. Nature 19, 482 (1879). https://doi.org/10.1038/019482a0
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DOI: https://doi.org/10.1038/019482a0
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