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AT129560B - Sound-permeable projection surface and process for their manufacture. - Google Patents

Sound-permeable projection surface and process for their manufacture.

Info

Publication number
AT129560B
AT129560B AT129560DA AT129560B AT 129560 B AT129560 B AT 129560B AT 129560D A AT129560D A AT 129560DA AT 129560 B AT129560 B AT 129560B
Authority
AT
Austria
Prior art keywords
sound
manufacture
projection surface
permeable projection
permeable
Prior art date
Application number
Other languages
German (de)
Inventor
Karl Zechmanek
Original Assignee
Karl Zechmanek
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.)
Filing date
Publication date
Application filed by Karl Zechmanek filed Critical Karl Zechmanek
Application granted granted Critical
Publication of AT129560B publication Critical patent/AT129560B/en

Links

Landscapes

  • Road Signs Or Road Markings (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)

Description

  

   <Desc/Clms Page number 1> 
 



  Schalldurclässige Projektionsfläche und Verfahren zu ihrer Herstellung. 
 EMI1.1 
 

**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.



   <Desc / Clms Page number 1>
 



  Sound-permeable projection surface and process for its production.
 EMI1.1
 

** WARNING ** End of DESC field may overlap beginning of CLMS **.

Claims (1)

**WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT129560D 1931-04-22 1931-04-22 Sound-permeable projection surface and process for their manufacture. AT129560B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT129560T 1931-04-22

Publications (1)

Publication Number Publication Date
AT129560B true AT129560B (en) 1932-08-25

Family

ID=3636128

Family Applications (1)

Application Number Title Priority Date Filing Date
AT129560D AT129560B (en) 1931-04-22 1931-04-22 Sound-permeable projection surface and process for their manufacture.

Country Status (1)

Country Link
AT (1) AT129560B (en)

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