FR718749A - Method and means for permanent sanitizing of various apparatus, in particular telephone apparatus - Google Patents

Method and means for permanent sanitizing of various apparatus, in particular telephone apparatus

Info

Publication number
FR718749A
FR718749A FR718749DA FR718749A FR 718749 A FR718749 A FR 718749A FR 718749D A FR718749D A FR 718749DA FR 718749 A FR718749 A FR 718749A
Authority
FR
France
Prior art keywords
sanitizing
permanent
particular telephone
various
telephone apparatus
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.)
Expired
Application number
Other languages
French (fr)
Inventor
Jean Chauvin
Jacques Risler
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Application granted granted Critical
Publication of FR718749A publication Critical patent/FR718749A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; 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)
FR718749D 1931-06-16 1931-06-16 Method and means for permanent sanitizing of various apparatus, in particular telephone apparatus Expired FR718749A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR718749T 1931-06-16

Publications (1)

Publication Number Publication Date
FR718749A true FR718749A (en) 1932-01-28

Family

ID=9090717

Family Applications (1)

Application Number Title Priority Date Filing Date
FR718749D Expired FR718749A (en) 1931-06-16 1931-06-16 Method and means for permanent sanitizing of various apparatus, in particular telephone apparatus

Country Status (1)

Country Link
FR (1) FR718749A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0262921A2 (en) * 1986-09-30 1988-04-06 Phoneshields Limited A set of bactericidal shields for use on telephone handsets

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0262921A2 (en) * 1986-09-30 1988-04-06 Phoneshields Limited A set of bactericidal shields for use on telephone handsets
EP0262921A3 (en) * 1986-09-30 1989-08-30 Phoneshields Limited A set of bactericidal shields for use on telephone handsets

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