AT75745B - Schalldose für Sprechmaschinen. - Google Patents

Schalldose für Sprechmaschinen.

Info

Publication number
AT75745B
AT75745B AT75745DA AT75745B AT 75745 B AT75745 B AT 75745B AT 75745D A AT75745D A AT 75745DA AT 75745 B AT75745 B AT 75745B
Authority
AT
Austria
Prior art keywords
sound box
speaking machines
speaking
machines
sound
Prior art date
Application number
Other languages
English (en)
Inventor
Walter Opel
Original Assignee
Walter Opel
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 Walter Opel filed Critical Walter Opel
Application granted granted Critical
Publication of AT75745B publication Critical patent/AT75745B/de

Links

Landscapes

  • Supply And Distribution Of Alternating Current (AREA)
  • Casings For Electric Apparatus (AREA)
  • Electrolytic Production Of Metals (AREA)

Description


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AT75745D 1915-04-19 1915-04-19 Schalldose für Sprechmaschinen. AT75745B (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT75745T 1915-04-19

Publications (1)

Publication Number Publication Date
AT75745B true AT75745B (de) 1919-03-10

Family

ID=3597422

Family Applications (1)

Application Number Title Priority Date Filing Date
AT75745D AT75745B (de) 1915-04-19 1915-04-19 Schalldose für Sprechmaschinen.

Country Status (1)

Country Link
AT (1) AT75745B (de)

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