BE572796A - - Google Patents

Info

Publication number
BE572796A
BE572796A BE572796DA BE572796A BE 572796 A BE572796 A BE 572796A BE 572796D A BE572796D A BE 572796DA BE 572796 A BE572796 A BE 572796A
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 BE572796A publication Critical patent/BE572796A/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)
BE572796D 1957-11-07 BE572796A (enrdf_load_html_response)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
BE572796A true BE572796A (enrdf_load_html_response)

Family

ID=10883511

Family Applications (1)

Application Number Title Priority Date Filing Date
BE572796D BE572796A (enrdf_load_html_response) 1957-11-07

Country Status (2)

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

Also Published As

Publication number Publication date
FR1219241A (fr) 1960-05-16

Similar Documents

Publication Publication Date Title
AT199272B (enrdf_load_html_response)
AT223175B (enrdf_load_html_response)
BE572796A (enrdf_load_html_response)
BE554350A (enrdf_load_html_response)
BE555193A (enrdf_load_html_response)
BE556001A (enrdf_load_html_response)
BE556472A (enrdf_load_html_response)
BE556692A (enrdf_load_html_response)
BE556857A (enrdf_load_html_response)
BE557151A (enrdf_load_html_response)
BE557423A (enrdf_load_html_response)
BE558148A (enrdf_load_html_response)
BE559023A (enrdf_load_html_response)
BE560175A (enrdf_load_html_response)
BE560371A (enrdf_load_html_response)
BE560467A (enrdf_load_html_response)
BE561073A (enrdf_load_html_response)
BE561556A (enrdf_load_html_response)
BE561764A (enrdf_load_html_response)
BE562004A (enrdf_load_html_response)
BE562191A (enrdf_load_html_response)
BE562356A (enrdf_load_html_response)
BE562636A (enrdf_load_html_response)
BE562684A (enrdf_load_html_response)
BE562797A (enrdf_load_html_response)