BE425729A - - Google Patents

Info

Publication number
BE425729A
BE425729A BE425729DA BE425729A BE 425729 A BE425729 A BE 425729A BE 425729D A BE425729D A BE 425729DA BE 425729 A BE425729 A BE 425729A
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 BE425729A publication Critical patent/BE425729A/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
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
    • H04R1/34—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means
    • H04R1/345—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means for loudspeakers

Landscapes

  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
BE425729D 1937-01-14 BE425729A (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL831978X 1937-01-14

Publications (1)

Publication Number Publication Date
BE425729A true BE425729A (enrdf_load_stackoverflow)

Family

ID=19842989

Family Applications (1)

Application Number Title Priority Date Filing Date
BE425729D BE425729A (enrdf_load_stackoverflow) 1937-01-14

Country Status (2)

Country Link
BE (1) BE425729A (enrdf_load_stackoverflow)
FR (1) FR831978A (enrdf_load_stackoverflow)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2909880C2 (de) 1979-03-14 1984-09-20 DUAL Gebrüder Steidinger GmbH & Co, 7742 St Georgen Elektrodynamischer Lautsprecher
DE3006508C2 (de) * 1980-02-21 1983-06-23 DUAL Gebrüder Steidinger GmbH & Co, 7742 St Georgen Elektrodynamischer Lautsprecher

Also Published As

Publication number Publication date
FR831978A (fr) 1938-09-16

Similar Documents

Publication Publication Date Title
DE1487747A1 (enrdf_load_stackoverflow)
BE420085R (enrdf_load_stackoverflow)
SE106354C1 (enrdf_load_stackoverflow)
BE420934A (enrdf_load_stackoverflow)
BE420975A (enrdf_load_stackoverflow)
NL66839C (enrdf_load_stackoverflow)
NL56880C (enrdf_load_stackoverflow)
NL50959C (enrdf_load_stackoverflow)
NL50729C (enrdf_load_stackoverflow)
NL50144C (enrdf_load_stackoverflow)
BE427684A (enrdf_load_stackoverflow)
BE422006A (enrdf_load_stackoverflow)
BE421925A (enrdf_load_stackoverflow)
BE421670A (enrdf_load_stackoverflow)
BE421624A (enrdf_load_stackoverflow)
BE421514A (enrdf_load_stackoverflow)
BE421498A (enrdf_load_stackoverflow)
BE421473A (enrdf_load_stackoverflow)
BE421431A (enrdf_load_stackoverflow)
BE421290A (enrdf_load_stackoverflow)
BE421282A (enrdf_load_stackoverflow)
BE421280A (enrdf_load_stackoverflow)
BE421131A (enrdf_load_stackoverflow)
BE421055A (enrdf_load_stackoverflow)
BE421017A (enrdf_load_stackoverflow)