BE378255A - - Google Patents
Info
- Publication number
- BE378255A BE378255A BE378255DA BE378255A BE 378255 A BE378255 A BE 378255A BE 378255D A BE378255D A BE 378255DA BE 378255 A BE378255 A BE 378255A
- Authority
- BE
- Belgium
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
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/12—Sanitary or hygienic devices for mouthpieces or earpieces, e.g. for protecting against infection
Landscapes
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Brushes (AREA)
- Telephone Set Structure (AREA)
- Adornments (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB19619/29A GB335577A (en) | 1929-06-26 | 1929-06-26 | New or improved disinfecting and cleansing device for telephone and like mouthpieces |
| FR717777T | 1930-09-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE378255A true BE378255A (fr) | 1931-04-30 |
Family
ID=10890861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE378255D BE378255A (fr) | 1929-06-26 | 1931-03-17 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US1797135A (fr) |
| BE (1) | BE378255A (fr) |
| FR (1) | FR717777A (fr) |
| GB (3) | GB335577A (fr) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2572547A (en) * | 1948-09-01 | 1951-10-23 | Horace L Webb | Dictation mask with cartridge type silencer |
| US2659778A (en) * | 1950-09-11 | 1953-11-17 | Fraschetti Virgilio | Device for treating with disinfectant the mouthpieces of telephones and like apparatus |
| US5034979A (en) * | 1989-04-14 | 1991-07-23 | Erickson Peggy J | Earring adapter for telephone |
| GB2246050A (en) * | 1990-07-13 | 1992-01-15 | Hwang Feng Lin | Telephone cleaner |
| CN112233526A (zh) * | 2020-09-05 | 2021-01-15 | 常州工学院 | 一种物联网沙盘教学演示装置 |
-
1929
- 1929-06-26 GB GB19619/29A patent/GB335577A/en not_active Expired
-
1930
- 1930-08-08 US US474020A patent/US1797135A/en not_active Expired - Lifetime
- 1930-08-19 GB GB24761/30A patent/GB367380A/en not_active Expired
- 1930-09-24 FR FR717777D patent/FR717777A/fr not_active Expired
-
1931
- 1931-03-17 BE BE378255D patent/BE378255A/xx unknown
-
1932
- 1932-02-05 GB GB3457/32A patent/GB396747A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB367380A (en) | 1932-02-19 |
| FR717777A (fr) | 1932-01-14 |
| GB335577A (en) | 1930-09-26 |
| US1797135A (en) | 1931-03-17 |
| GB396747A (en) | 1933-08-08 |