NL41916C - - Google Patents
Info
- Publication number
- NL41916C NL41916C NL71158A NL71158A NL41916C NL 41916 C NL41916 C NL 41916C NL 71158 A NL71158 A NL 71158A NL 71158 A NL71158 A NL 71158A NL 41916 C NL41916 C NL 41916C
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
- H04M11/10—Telephonic communication systems specially adapted for combination with other electrical systems with dictation recording and playback systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/64—Automatic arrangements for answering calls; Automatic arrangements for recording messages for absent subscribers; Arrangements for recording conversations
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/64—Automatic arrangements for answering calls; Automatic arrangements for recording messages for absent subscribers; Arrangements for recording conversations
- H04M1/65—Recording arrangements for recording a message from the calling party
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/42—Systems providing special services or facilities to subscribers
- H04M3/42221—Conversation recording systems
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Telephone Set Structure (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH2082303X | 1934-09-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL41916C true NL41916C (da) | 1937-11-15 |
Family
ID=31994867
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL71158A NL41916C (da) | 1934-09-29 | 1934-10-23 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US2082303A (da) |
| BE (1) | BE406363A (da) |
| CH (3) | CH183345A (da) |
| FR (1) | FR781600A (da) |
| GB (1) | GB434634A (da) |
| NL (1) | NL41916C (da) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2442851A (en) * | 1940-08-03 | 1948-06-08 | Farnsworth Res Corp | Traffic signaling system |
| BE476355A (da) * | 1946-10-09 | |||
| US2527145A (en) * | 1946-12-06 | 1950-10-24 | Bell Telephone Labor Inc | Magnetic recorder and transmitter |
| US2519318A (en) * | 1946-12-24 | 1950-08-15 | Hattie B Kuhlik | Sound recording and reproducing apparatus |
| US2612565A (en) * | 1948-05-24 | 1952-09-30 | Herman S Heller | Safety device for preventing accidental erasing or double recording on magnetic record tape |
| DE883003C (de) * | 1949-09-01 | 1953-07-13 | Siemens Ag | Magnetton-Aufzeichnungsgeraet zur selbsttaetigen Aufzeichnung von Gespraechen |
| US2673242A (en) * | 1949-12-17 | 1954-03-23 | Telephone Answering And Record | Means for controlling telephone answering devices |
| US2784254A (en) * | 1951-01-05 | 1957-03-05 | Lane John Dexter | System for telephone answering and recording and for message recording and reproducing |
| US2757238A (en) * | 1951-09-19 | 1956-07-31 | Edison Inc Thomas A | Remotely-controlled dictationrecording system |
| GB1300228A (en) * | 1969-09-19 | 1972-12-20 | Learning Appliances Ltd | Amplifier switching means |
-
1934
- 1934-09-29 CH CH183345D patent/CH183345A/de unknown
- 1934-10-23 NL NL71158A patent/NL41916C/xx active
- 1934-11-20 FR FR781600D patent/FR781600A/fr not_active Expired
- 1934-11-20 BE BE406363D patent/BE406363A/xx unknown
- 1934-11-26 GB GB33993/34A patent/GB434634A/en not_active Expired
- 1934-12-13 US US757415A patent/US2082303A/en not_active Expired - Lifetime
-
1935
- 1935-03-18 CH CH185855D patent/CH185855A/de unknown
- 1935-03-18 CH CH185856D patent/CH185856A/de unknown
Also Published As
| Publication number | Publication date |
|---|---|
| GB434634A (en) | 1935-09-05 |
| CH183345A (de) | 1936-03-31 |
| CH185856A (de) | 1936-08-15 |
| BE406363A (da) | 1934-12-31 |
| CH185855A (de) | 1936-08-15 |
| US2082303A (en) | 1937-06-01 |
| FR781600A (fr) | 1935-05-18 |