DE212609C - - Google Patents

Info

Publication number
DE212609C
DE212609C DENDAT212609D DE212609DA DE212609C DE 212609 C DE212609 C DE 212609C DE NDAT212609 D DENDAT212609 D DE NDAT212609D DE 212609D A DE212609D A DE 212609DA DE 212609 C DE212609 C DE 212609C
Authority
DE
Germany
Prior art keywords
flap
mouthpiece
closed
shell
antiseptic
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
DENDAT212609D
Other languages
German (de)
English (en)
Publication of DE212609C publication Critical patent/DE212609C/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)
DENDAT212609D Active DE212609C (https=)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE212609T

Publications (1)

Publication Number Publication Date
DE212609C true DE212609C (https=)

Family

ID=5808952

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT212609D Active DE212609C (https=)

Country Status (2)

Country Link
DE (1) DE212609C (https=)
FR (1) FR389614A (https=)

Also Published As

Publication number Publication date
FR389614A (fr) 1908-09-14

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