AT108972B - Kopf-Telephon. - Google Patents
Kopf-Telephon.Info
- Publication number
- AT108972B AT108972B AT108972DA AT108972B AT 108972 B AT108972 B AT 108972B AT 108972D A AT108972D A AT 108972DA AT 108972 B AT108972 B AT 108972B
- Authority
- AT
- Austria
- Prior art keywords
- head phone
- phone
- head
- Prior art date
Links
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT108972T | 1926-04-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
AT108972B true AT108972B (de) | 1928-02-25 |
Family
ID=3625402
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT108972D AT108972B (de) | 1926-04-12 | 1926-04-12 | Kopf-Telephon. |
Country Status (1)
Country | Link |
---|---|
AT (1) | AT108972B (de) |
-
1926
- 1926-04-12 AT AT108972D patent/AT108972B/de active
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