FR1219241A - Method and apparatus for making the mouth of a telephone receiver or the like hygienic - Google Patents

Method and apparatus for making the mouth of a telephone receiver or the like hygienic

Info

Publication number
FR1219241A
FR1219241A FR778232A FR778232A FR1219241A FR 1219241 A FR1219241 A FR 1219241A FR 778232 A FR778232 A FR 778232A FR 778232 A FR778232 A FR 778232A FR 1219241 A FR1219241 A FR 1219241A
Authority
FR
France
Prior art keywords
hygienic
mouth
making
telephone receiver
telephone
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
FR778232A
Other languages
French (fr)
Inventor
John Edmund Smith
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 FR1219241A publication Critical patent/FR1219241A/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)
FR778232A 1957-11-07 1958-11-04 Method and apparatus for making the mouth of a telephone receiver or the like hygienic Expired FR1219241A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1219241X 1957-11-07

Publications (1)

Publication Number Publication Date
FR1219241A true FR1219241A (en) 1960-05-16

Family

ID=10883511

Family Applications (1)

Application Number Title Priority Date Filing Date
FR778232A Expired FR1219241A (en) 1957-11-07 1958-11-04 Method and apparatus for making the mouth of a telephone receiver or the like hygienic

Country Status (2)

Country Link
BE (1) BE572796A (en)
FR (1) FR1219241A (en)

Also Published As

Publication number Publication date
BE572796A (en)

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