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 (cg-RX-API-DMAC7.html)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
BE390065A true BE390065A (cg-RX-API-DMAC7.html)

Family

ID=3879838

Family Applications (1)

Application Number Title Priority Date Filing Date
BE390065D BE390065A (cg-RX-API-DMAC7.html) 1932-07-27

Country Status (2)

Country Link
BE (1) BE390065A (cg-RX-API-DMAC7.html)
FR (1) FR758873A (cg-RX-API-DMAC7.html)

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

Similar Documents

Publication Publication Date Title
FR759271A (cg-RX-API-DMAC7.html)
BE388126A (cg-RX-API-DMAC7.html)
BE388086A (cg-RX-API-DMAC7.html)
NL41253C (cg-RX-API-DMAC7.html)
NL35945C (cg-RX-API-DMAC7.html)
NL34950C (cg-RX-API-DMAC7.html)
NL33688C (cg-RX-API-DMAC7.html)
NL31724C (cg-RX-API-DMAC7.html)
BE386716A (cg-RX-API-DMAC7.html)
BE399464A (cg-RX-API-DMAC7.html)
BE397770A (cg-RX-API-DMAC7.html)
BE397525A (cg-RX-API-DMAC7.html)
BE397368A (cg-RX-API-DMAC7.html)
BE389538A (cg-RX-API-DMAC7.html)
BE388289A (cg-RX-API-DMAC7.html)
BE388263A (cg-RX-API-DMAC7.html)
BE388245A (cg-RX-API-DMAC7.html)
BE388194A (cg-RX-API-DMAC7.html)
BE388179A (cg-RX-API-DMAC7.html)
BE388156A (cg-RX-API-DMAC7.html)
BE390065A (cg-RX-API-DMAC7.html)
BE388103A (cg-RX-API-DMAC7.html)
BE388080A (cg-RX-API-DMAC7.html)
BE388065A (cg-RX-API-DMAC7.html)
BE388060A (cg-RX-API-DMAC7.html)