FR527719A - Telephone recorder receiver for dictation phonographs, telephonographs and similar apparatus - Google Patents
Telephone recorder receiver for dictation phonographs, telephonographs and similar apparatusInfo
- Publication number
- FR527719A FR527719A FR527719A FR527719DA FR527719A FR 527719 A FR527719 A FR 527719A FR 527719 A FR527719 A FR 527719A FR 527719D A FR527719D A FR 527719DA FR 527719 A FR527719 A FR 527719A
- Authority
- FR
- France
- Prior art keywords
- telephonographs
- phonographs
- dictation
- similar apparatus
- telephone recorder
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired
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
- H04R11/00—Transducers of moving-armature or moving-core type
- H04R11/08—Gramophone pick-ups using a stylus; Recorders using a stylus
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Electromagnets (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE338832T | 1920-01-11 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR527719A true FR527719A (en) | 1921-10-29 |
Family
ID=33459930
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR527719A Expired FR527719A (en) | 1920-01-11 | 1920-11-27 | Telephone recorder receiver for dictation phonographs, telephonographs and similar apparatus |
Country Status (3)
Country | Link |
---|---|
DE (2) | DE338832C (en) |
FR (1) | FR527719A (en) |
NL (1) | NL9721C (en) |
-
0
- NL NL9721D patent/NL9721C/xx active
-
1920
- 1920-01-11 DE DE1920338832D patent/DE338832C/en not_active Expired
- 1920-03-10 DE DE1920340199D patent/DE340199C/en not_active Expired
- 1920-11-27 FR FR527719A patent/FR527719A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE338832C (en) | 1921-07-06 |
NL9721C (en) | |
DE340199C (en) | 1921-09-03 |
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