NL21272C - - Google Patents
Info
- Publication number
- NL21272C NL21272C NL21272DA NL21272C NL 21272 C NL21272 C NL 21272C NL 21272D A NL21272D A NL 21272DA NL 21272 C NL21272 C NL 21272C
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/26—Devices for calling a subscriber
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE630860X | 1926-09-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL21272C true NL21272C (ja�@�@) |
Family
ID=6578874
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL21272D NL21272C (ja�@�@) | 1926-09-23 | ||
| NL22075D NL22075C (ja�@�@) | 1926-09-23 |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL22075D NL22075C (ja�@�@) | 1926-09-23 |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR630860A (ja�@�@) |
| NL (2) | NL22075C (ja�@�@) |
-
0
- NL NL21272D patent/NL21272C/xx active
- NL NL22075D patent/NL22075C/xx active
-
1927
- 1927-01-13 FR FR630860D patent/FR630860A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL22075C (ja�@�@) | |
| FR630860A (fr) | 1927-12-10 |