BE390065A - - Google Patents

Info

Publication number
BE390065A
BE390065A BE390065DA BE390065A BE 390065 A BE390065 A BE 390065A BE 390065D A BE390065D A BE 390065DA BE 390065 A BE390065 A BE 390065A
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 BE390065A publication Critical patent/BE390065A/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)
BE390065D 1932-07-27 BE390065A (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE758873X 1932-07-27

Publications (1)

Publication Number Publication Date
BE390065A true BE390065A (enrdf_load_stackoverflow)

Family

ID=3879838

Family Applications (1)

Application Number Title Priority Date Filing Date
BE390065D BE390065A (enrdf_load_stackoverflow) 1932-07-27

Country Status (2)

Country Link
BE (1) BE390065A (enrdf_load_stackoverflow)
FR (1) FR758873A (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2723676B1 (fr) * 1994-08-09 1996-10-18 Gourdain Daniel Dispositif anti-pollution pour telephone

Also Published As

Publication number Publication date
FR758873A (fr) 1934-01-24

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