NL12976C - - Google Patents
Info
- Publication number
- NL12976C NL12976C NL12976DA NL12976C NL 12976 C NL12976 C NL 12976C NL 12976D A NL12976D A NL 12976DA NL 12976 C NL12976 C NL 12976C
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/58—Anti-side-tone circuits
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US210265A US1396760A (en) | 1918-01-04 | 1918-01-04 | Signaling-circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL12976C true NL12976C (xx) |
Family
ID=22782226
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL12976D NL12976C (xx) | 1918-01-04 |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US1396760A (xx) |
| NL (1) | NL12976C (xx) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2518374A (en) * | 1946-12-05 | 1950-08-08 | Bell Telephone Labor Inc | Magnetotelephone arrangement for direct current |
-
0
- NL NL12976D patent/NL12976C/xx active
-
1918
- 1918-01-04 US US210265A patent/US1396760A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US1396760A (en) | 1921-11-15 |