FR480857A - Téléphone thermique - Google Patents
Téléphone thermiqueInfo
- Publication number
- FR480857A FR480857A FR480857DA FR480857A FR 480857 A FR480857 A FR 480857A FR 480857D A FR480857D A FR 480857DA FR 480857 A FR480857 A FR 480857A
- Authority
- FR
- France
- Prior art keywords
- phone
- thermal
- thermal phone
- 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
- H04R23/00—Transducers other than those covered by groups H04R9/00 - H04R21/00
- H04R23/002—Transducers other than those covered by groups H04R9/00 - H04R21/00 using electrothermic-effect transducer
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Thermotherapy And Cooling Therapy Devices (AREA)
- Telephone Set Structure (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE297247T | 1915-02-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR480857A true FR480857A (fr) | 1916-10-04 |
Family
ID=32668493
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR480857D Expired FR480857A (fr) | 1915-02-10 | 1916-02-04 | Téléphone thermique |
Country Status (4)
Country | Link |
---|---|
DE (1) | DE297247C (de) |
FR (1) | FR480857A (de) |
GB (1) | GB191505836A (de) |
NL (1) | NL4051C (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6602956B2 (ja) | 2015-08-25 | 2019-11-06 | ヘラマンタイトン コーポレイション | 止まり穴マウント |
-
0
- NL NL4051D patent/NL4051C/xx active
-
1915
- 1915-02-10 DE DE1915297247D patent/DE297247C/de not_active Expired - Lifetime
- 1915-04-19 GB GB191505836D patent/GB191505836A/en not_active Expired
-
1916
- 1916-02-04 FR FR480857D patent/FR480857A/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
NL4051C (de) | |
DE297247C (de) | |
GB191505836A (en) | 1916-04-19 |
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