BE389074A - - Google Patents

Info

Publication number

BE389074A

BE389074A BE389074DA BE389074A BE 389074 A BE389074 A BE 389074A BE 389074D A BE389074D A BE 389074DA BE 389074 A BE389074 A BE 389074A

Authority

BE

Belgium

Prior art keywords

tube

acoustic

disc

reproducer

extensible

Prior art date

Links

• Espacenet
• Global Dossier
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• 230000013707 sensory perception of sound Effects 0.000 claims description 21
• 239000002184 metal Substances 0.000 claims description 6
• 238000006073 displacement reaction Methods 0.000 claims description 5
• 239000007787 solid Substances 0.000 claims description 5
• 230000003321 amplification Effects 0.000 claims description 4
• 239000000463 material Substances 0.000 claims description 4
• 238000003199 nucleic acid amplification method Methods 0.000 claims description 4
• 239000002775 capsule Substances 0.000 claims description 2
• 230000002393 scratching effect Effects 0.000 description 5
• 238000006748 scratching Methods 0.000 description 4
• 229910052594 sapphire Inorganic materials 0.000 description 2
• 239000010980 sapphire Substances 0.000 description 2
• CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
• 230000005540 biological transmission Effects 0.000 description 1
• 239000000470 constituent Substances 0.000 description 1
• 230000005520 electrodynamics Effects 0.000 description 1
• 210000000056 organ Anatomy 0.000 description 1
• 230000002035 prolonged effect Effects 0.000 description 1
• 230000000717 retained effect Effects 0.000 description 1
• 238000007790 scraping Methods 0.000 description 1
• 238000004904 shortening Methods 0.000 description 1