NL61306C - - Google Patents
Info
- Publication number
- NL61306C NL61306C NL61306DA NL61306C NL 61306 C NL61306 C NL 61306C NL 61306D A NL61306D A NL 61306DA NL 61306 C NL61306 C NL 61306C
- Authority
- NL
- Netherlands
Links
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
- A01M23/00—Traps for animals
- A01M23/02—Collecting-traps
- A01M23/04—Collecting-traps with tipping platforms
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/34—Negative-feedback-circuit arrangements with or without positive feedback
- H03F1/36—Negative-feedback-circuit arrangements with or without positive feedback in discharge-tube amplifiers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R3/00—Circuits for transducers, loudspeakers or microphones
- H04R3/002—Damping circuit arrangements for transducers, e.g. motional feedback circuits
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/12—Gramophone pick-ups using a stylus; Recorders using a stylus
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/12—Gramophone pick-ups using a stylus; Recorders using a stylus
- H04R9/16—Gramophone pick-ups using a stylus; Recorders using a stylus signals recorded or played back by vibration of a stylus in two orthogonal directions simultaneously
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Signal Processing (AREA)
- Acoustics & Sound (AREA)
- Pest Control & Pesticides (AREA)
- Insects & Arthropods (AREA)
- Power Engineering (AREA)
- Environmental Sciences (AREA)
- Zoology (AREA)
- Wood Science & Technology (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
- Amplifiers (AREA)
- Reciprocating, Oscillating Or Vibrating Motors (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US167708A US2161489A (en) | 1937-10-07 | 1937-10-07 | Vibratory system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL61306C true NL61306C (US06573293-20030603-C00184.png) |
Family
ID=22608481
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL61306D NL61306C (US06573293-20030603-C00184.png) | 1937-10-07 |
Country Status (5)
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE457138A (US06573293-20030603-C00184.png) * | 1943-07-09 | |||
| US2508783A (en) * | 1945-02-16 | 1950-05-23 | Lionel B Cornwell | Electrical sound translating device |
| US2475200A (en) * | 1945-06-28 | 1949-07-05 | Rca Corp | Signal recording apparatus |
| US2522567A (en) * | 1946-06-21 | 1950-09-19 | Emory G Cook | Amplifier feed-back system for magnetic motors |
| NL75135C (US06573293-20030603-C00184.png) * | 1947-01-11 | |||
| US2531242A (en) * | 1947-09-05 | 1950-11-21 | Bell Telephone Labor Inc | Electrodynamic phonograph pickup |
| US2622156A (en) * | 1949-01-27 | 1952-12-16 | Donald J Baker | Pickup head with removable armature and stylus assembly |
| US2858375A (en) * | 1955-10-11 | 1958-10-28 | Rca Corp | Wide range dynamic phonograph pickup |
| US3020361A (en) * | 1956-01-23 | 1962-02-06 | Jerry B Minter | Electromagnetic engraving apparatus |
| DE1031536B (de) * | 1956-03-16 | 1958-06-04 | Teldec Telefunken Decca | Mechanisch-elektrischer Wandler fuer die Erzeugung oder Abtastung einer rillenfoermigen Tonspur |
| BE555963A (US06573293-20030603-C00184.png) * | 1956-03-20 | |||
| DE1121826B (de) * | 1960-02-02 | 1962-01-11 | Telefunken Gmbh | Mechanisch-elektrischer Wandler fuer die Erzeugung oder Abtastung einer rillenfoermigen Tonspur |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE357316C (de) * | 1922-08-22 | Horace Owen Merriman | Apparat zum Aufzeichnen von Toenen | |
| GB160223A (en) * | 1919-11-18 | 1921-03-18 | Adrian Francis Sykes | Improvements in telephonic and like apparatus |
| US1535538A (en) * | 1923-01-03 | 1925-04-28 | Western Electric Co | Vibratory system |
| US1645582A (en) * | 1924-11-20 | 1927-10-18 | Studebaker Corp | Top construction |
| GB350954A (en) * | 1930-03-10 | 1931-06-10 | Alan Dower Blumlein | Improvements in electro-mechanical sound recording devices more especially of the moving coil type |
-
0
- NL NL61306D patent/NL61306C/xx active
-
1937
- 1937-10-07 US US167708A patent/US2161489A/en not_active Expired - Lifetime
-
1938
- 1938-09-28 FR FR844068D patent/FR844068A/fr not_active Expired
- 1938-09-29 GB GB28295/38A patent/GB518442A/en not_active Expired
- 1938-10-07 DE DEW718D patent/DE868076C/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB518442A (en) | 1940-02-27 |
| US2161489A (en) | 1939-06-06 |
| DE868076C (de) | 1953-02-23 |
| FR844068A (fr) | 1939-07-18 |
