BE397026A - - Google Patents

Info

Publication number
BE397026A
BE397026A BE397026DA BE397026A BE 397026 A BE397026 A BE 397026A BE 397026D A BE397026D A BE 397026DA BE 397026 A BE397026 A BE 397026A
Authority
BE
Belgium
Application number
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.)
Publication of BE397026A publication Critical patent/BE397026A/xx

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)
BE397026D 1932-08-20 BE397026A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT754710X 1932-08-20

Publications (1)

Publication Number Publication Date
BE397026A true BE397026A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Family

ID=11315755

Family Applications (1)

Application Number Title Priority Date Filing Date
BE397026D BE397026A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1932-08-20

Country Status (2)

Country Link
BE (1) BE397026A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
FR (1) FR754710A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2437825A1 (fr) * 1978-10-03 1980-04-30 Celatose Sa Protecteur destine a etre intercalle entre l'oreille et un organe tel qu'une oreillette ou un ecouteur
WO1989006479A1 (en) * 1988-01-06 1989-07-13 Ian Daniel Mcginn Hygienic covers for telephones

Also Published As

Publication number Publication date
FR754710A (fr) 1933-11-13

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