DE278950C - - Google Patents
Info
- Publication number
- DE278950C DE278950C DENDAT278950D DE278950DA DE278950C DE 278950 C DE278950 C DE 278950C DE NDAT278950 D DENDAT278950 D DE NDAT278950D DE 278950D A DE278950D A DE 278950DA DE 278950 C DE278950 C DE 278950C
- Authority
- DE
- Germany
- Prior art keywords
- current
- resistor
- glow
- line
- iron
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F13/00—Amplifiers using amplifying element consisting of two mechanically- or acoustically-coupled transducers, e.g. telephone-microphone amplifier
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT191315179X | 1912-07-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE278950C true DE278950C (enrdf_load_stackoverflow) |
Family
ID=32601447
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DENDAT278950D Active DE278950C (enrdf_load_stackoverflow) | 1912-07-15 |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE278950C (enrdf_load_stackoverflow) |
FR (1) | FR463735A (enrdf_load_stackoverflow) |
GB (1) | GB191315179A (enrdf_load_stackoverflow) |
-
0
- DE DENDAT278950D patent/DE278950C/de active Active
-
1913
- 1913-07-01 GB GB191315179D patent/GB191315179A/en not_active Expired
- 1913-07-10 FR FR463735A patent/FR463735A/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB191315179A (en) | 1914-02-12 |
FR463735A (fr) | 1914-03-03 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE278950C (enrdf_load_stackoverflow) | ||
DE868384C (de) | Magnetostriktionsschwinger | |
US1961058A (en) | Magnetic interrupter | |
US1112411A (en) | Wave-detector. | |
US2252645A (en) | Apparatus for producing constant current | |
US364619A (en) | Relay-instrument | |
US1797696A (en) | Pocket telegraph receptor | |
US226485A (en) | Jesse h | |
US1743494A (en) | Pole-changer transmitter | |
US128894A (en) | Inprovement in telegraph apparatus | |
AT109908B (de) | Lautsprecher. | |
US749791A (en) | Means for reproducing electrical variations | |
DE921948C (de) | Elektrisch angeregte Stimmgabel | |
US235658A (en) | Relay-telephone | |
AT56204B (de) | Einrichtung zur abgestimmten Telegraphie und Telephonie ohne Draht. | |
AT109321B (de) | Lautsprecher. | |
US1164407A (en) | Telephone-relay. | |
AT55487B (de) | Einrichtung zur Erzeugung, Verstärkung oder Aufnahme elektrischer Schwingungen. | |
DE240800C (enrdf_load_stackoverflow) | ||
US939625A (en) | Apparatus for strengthening weak electrical currents. | |
DE237671C (enrdf_load_stackoverflow) | ||
US1194457A (en) | willis | |
DE265532C (enrdf_load_stackoverflow) | ||
AT102051B (de) | Zusatzendverstärkereinrichtung. | |
DE315628C (enrdf_load_stackoverflow) |