FR6855E - Sanitary protector for telephone receivers - Google Patents
Sanitary protector for telephone receiversInfo
- Publication number
- FR6855E FR6855E FR6855A FR6855DA FR6855E FR 6855 E FR6855 E FR 6855E FR 6855 A FR6855 A FR 6855A FR 6855D A FR6855D A FR 6855DA FR 6855 E FR6855 E FR 6855E
- Authority
- FR
- France
- Prior art keywords
- telephone receivers
- sanitary protector
- protector
- sanitary
- receivers
- 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; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/12—Sanitary or hygienic devices for mouthpieces or earpieces, e.g. for protecting against infection
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22G—SUPERHEATING OF STEAM
- F22G7/00—Steam superheaters characterised by location, arrangement, or disposition
- F22G7/005—Steam superheaters characterised by location, arrangement, or disposition for locomotive boilers
Landscapes
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR6855T |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR6855E true FR6855E (en) | 1907-03-20 |
Family
ID=8612749
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR6855A Expired FR6855E (en) | Sanitary protector for telephone receivers | ||
| FR370377A Expired FR370377A (en) | 1906-10-11 | Sanitary protector for telephone receivers |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR370377A Expired FR370377A (en) | 1906-10-11 | Sanitary protector for telephone receivers |
Country Status (1)
| Country | Link |
|---|---|
| FR (2) | FR370377A (en) |
-
0
- FR FR6855A patent/FR6855E/en not_active Expired
-
1906
- 1906-10-11 FR FR370377A patent/FR370377A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR370377A (en) | 1907-02-05 |
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