DE162408C - - Google Patents

Info

Publication number
DE162408C
DE162408C DENDAT162408D DE162408DA DE162408C DE 162408 C DE162408 C DE 162408C DE NDAT162408 D DENDAT162408 D DE NDAT162408D DE 162408D A DE162408D A DE 162408DA DE 162408 C DE162408 C DE 162408C
Authority
DE
Germany
Prior art keywords
disinfectant
mouthpiece
edge
ring
frame
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
DENDAT162408D
Other languages
German (de)
English (en)
Publication of DE162408C publication Critical patent/DE162408C/de
Active legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/12—Sanitary or hygienic devices for mouthpieces or earpieces, e.g. for protecting against infection

Landscapes

  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Telephone Set Structure (AREA)
  • Apparatus For Disinfection Or Sterilisation (AREA)
DENDAT162408D Active DE162408C (da)

Publications (1)

Publication Number Publication Date
DE162408C true DE162408C (da)

Family

ID=428206

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT162408D Active DE162408C (da)

Country Status (1)

Country Link
DE (1) DE162408C (da)

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