FR737931A - Apparatus for disinfecting instruments for public use and particularly telephones - Google Patents

Apparatus for disinfecting instruments for public use and particularly telephones

Info

Publication number
FR737931A
FR737931A FR737931DA FR737931A FR 737931 A FR737931 A FR 737931A FR 737931D A FR737931D A FR 737931DA FR 737931 A FR737931 A FR 737931A
Authority
FR
France
Prior art keywords
public use
disinfecting instruments
telephones
particularly telephones
disinfecting
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
Vincent La Porta
Gustave Bruneau
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 FR737931A publication Critical patent/FR737931A/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)
FR737931D 1931-11-07 1931-09-24 Apparatus for disinfecting instruments for public use and particularly telephones Expired FR737931A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR42126T 1931-11-07

Publications (1)

Publication Number Publication Date
FR737931A true FR737931A (en) 1932-12-19

Family

ID=8678216

Family Applications (2)

Application Number Title Priority Date Filing Date
FR737931D Expired FR737931A (en) 1931-11-07 1931-09-24 Apparatus for disinfecting instruments for public use and particularly telephones
FR42126D Expired FR42126E (en) 1931-11-07 1931-11-07 Apparatus for disinfecting instruments for public use and particularly telephones

Family Applications After (1)

Application Number Title Priority Date Filing Date
FR42126D Expired FR42126E (en) 1931-11-07 1931-11-07 Apparatus for disinfecting instruments for public use and particularly telephones

Country Status (2)

Country Link
BE (1) BE396307A (en)
FR (2) FR737931A (en)

Also Published As

Publication number Publication date
BE396307A (en)
FR42126E (en) 1933-05-31

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