BE343067A - - Google Patents
Info
- Publication number
- BE343067A BE343067A BE343067DA BE343067A BE 343067 A BE343067 A BE 343067A BE 343067D A BE343067D A BE 343067DA BE 343067 A BE343067 A BE 343067A
- Authority
- BE
- Belgium
Links
Classifications
-
- 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
- H04M1/30—Devices which can set up and transmit only one digit at a time
- H04M1/31—Devices which can set up and transmit only one digit at a time by interrupting current to generate trains of pulses; by periodically opening and closing contacts to generate trains of pulses
-
- 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
- H04M1/18—Telephone sets specially adapted for use in ships, mines, or other places exposed to adverse environment
-
- 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
- H04M1/30—Devices which can set up and transmit only one digit at a time
- H04M1/31—Devices which can set up and transmit only one digit at a time by interrupting current to generate trains of pulses; by periodically opening and closing contacts to generate trains of pulses
- H04M1/34—Lost-motion or other arrangements for ensuring a pause between successive digit transmissions
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Telephone Set Structure (AREA)
- Cash Registers Or Receiving Machines (AREA)
- Telephone Function (AREA)
- Transmission Devices (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US234036XA | 1924-05-15 | 1924-05-15 | |
| US599575XA | 1924-05-15 | 1924-05-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE343067A true BE343067A (ja) | 1927-07-30 |
Family
ID=26697092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE343067D BE343067A (ja) | 1924-05-15 | 1927-06-21 |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE343067A (ja) |
| FR (2) | FR599575A (ja) |
| GB (3) | GB234036A (ja) |
-
1924
- 1924-07-14 GB GB16899/24A patent/GB234036A/en not_active Expired
- 1924-07-14 GB GB18509/25A patent/GB237290A/en not_active Expired
-
1925
- 1925-05-14 FR FR599575D patent/FR599575A/fr not_active Expired
-
1927
- 1927-06-21 BE BE343067D patent/BE343067A/xx unknown
-
1930
- 1930-04-08 GB GB11206/30A patent/GB352469A/en not_active Expired
- 1930-09-19 FR FR39059D patent/FR39059E/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR599575A (fr) | 1926-01-15 |
| GB234036A (en) | 1925-10-14 |
| GB352469A (en) | 1931-07-08 |
| FR39059E (fr) | 1931-08-25 |
| GB237290A (en) | 1925-10-14 |