NL138004A - - Google Patents
Info
- Publication number
- NL138004A NL138004A NL138004DA NL138004A NL 138004 A NL138004 A NL 138004A NL 138004D A NL138004D A NL 138004DA NL 138004 A NL138004 A NL 138004A
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Telephone Set Structure (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US470625A US2405543A (en) | 1942-12-30 | 1942-12-30 | Telephone set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL138004A true NL138004A (it) |
Family
ID=23868346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL138004D NL138004A (it) | 1942-12-30 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US2405543A (it) |
| BE (1) | BE465890A (it) |
| CH (1) | CH267227A (it) |
| FR (1) | FR927072A (it) |
| GB (1) | GB611558A (it) |
| NL (1) | NL138004A (it) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2506715A (en) * | 1947-08-22 | 1950-05-09 | Automatic Elect Lab | Loud-speaking telephone station set with separate acoustic passages to the receiver and transmitter |
| NL77026C (it) * | 1951-01-25 | |||
| BE555125A (it) * | 1956-02-21 | |||
| NL245026A (it) * | 1958-11-05 | |||
| US3471642A (en) * | 1966-08-25 | 1969-10-07 | American Optical Corp | Communications headset with transmitter and receiver located in a noise-shielding cup covering mouth |
| SE363454B (it) * | 1970-02-27 | 1974-01-14 | K Blomberg | |
| GB2310559B (en) * | 1996-02-23 | 2000-09-20 | Nokia Mobile Phones Ltd | Audio output apparatus for a mobile communication device |
| FR2763455A1 (fr) * | 1997-05-14 | 1998-11-20 | Gerard Quilliou | Patin anti-derapant pour combine telephonique. |
| GB2336499B (en) * | 1998-03-18 | 2002-06-12 | Nokia Mobile Phones Ltd | Audio diaphragm mounting arrangements in radio telephone handsets |
| CN1292194A (zh) * | 1998-11-04 | 2001-04-18 | 皇家菲利浦电子有限公司 | 带有扬声器的移动电话 |
-
0
- BE BE465890D patent/BE465890A/xx unknown
- NL NL138004D patent/NL138004A/xx unknown
-
1942
- 1942-12-30 US US470625A patent/US2405543A/en not_active Expired - Lifetime
-
1946
- 1946-05-01 GB GB13198/46A patent/GB611558A/en not_active Expired
- 1946-05-18 FR FR927072D patent/FR927072A/fr not_active Expired
-
1948
- 1948-02-28 CH CH267227D patent/CH267227A/de unknown
Also Published As
| Publication number | Publication date |
|---|---|
| GB611558A (en) | 1948-11-01 |
| US2405543A (en) | 1946-08-06 |
| CH267227A (de) | 1950-03-15 |
| FR927072A (fr) | 1947-10-20 |
| BE465890A (it) |