NL19330C - - Google Patents
Info
- Publication number
- NL19330C NL19330C NL19330DA NL19330C NL 19330 C NL19330 C NL 19330C NL 19330D A NL19330D A NL 19330DA NL 19330 C NL19330 C NL 19330C
- 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
- H04M1/04—Supports for telephone transmitters or receivers
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Telephone Set Structure (AREA)
- Interconnected Communication Systems, Intercoms, And Interphones (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE259947X | 1925-10-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL19330C true NL19330C (xx) |
Family
ID=5966941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL19330D NL19330C (xx) | 1925-10-13 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US1789104A (xx) |
| FR (1) | FR622950A (xx) |
| GB (1) | GB259947A (xx) |
| NL (1) | NL19330C (xx) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4768614A (en) * | 1986-11-28 | 1988-09-06 | Case Eliot M | Unidirectional enhancer for microphones |
| FR3047382B1 (fr) * | 2016-02-02 | 2020-01-31 | Viga Music Tools | Procede et dispositif de prise de son dans un instrument a vent |
-
0
- NL NL19330D patent/NL19330C/xx active
-
1926
- 1926-10-04 US US139338A patent/US1789104A/en not_active Expired - Lifetime
- 1926-10-05 GB GB24693/26A patent/GB259947A/en not_active Expired
- 1926-10-12 FR FR622950D patent/FR622950A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR622950A (fr) | 1927-06-09 |
| GB259947A (en) | 1927-02-03 |
| US1789104A (en) | 1931-01-13 |