NL114040C - - Google Patents
Info
- Publication number
- NL114040C NL114040C NL114040DA NL114040C NL 114040 C NL114040 C NL 114040C NL 114040D A NL114040D A NL 114040DA NL 114040 C NL114040 C NL 114040C
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic elements; Electromechanical resonators
- H03H9/46—Filters
- H03H9/48—Coupling means therefor
- H03H9/50—Mechanical coupling means
Landscapes
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1957T0013399 DE1242770B (de) | 1957-03-22 | 1957-03-22 | Mechanisches Frequenzfilter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL114040C true NL114040C (cs) |
Family
ID=7547323
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL114040D NL114040C (cs) | 1957-03-22 | ||
| NL225484D NL225484A (cs) | 1957-03-22 |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL225484D NL225484A (cs) | 1957-03-22 |
Country Status (4)
| Country | Link |
|---|---|
| CH (1) | CH358873A (cs) |
| DE (1) | DE1242770B (cs) |
| FR (1) | FR1191702A (cs) |
| NL (2) | NL225484A (cs) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1491528B1 (de) * | 1965-04-20 | 1972-04-27 | Elektronische Bauelemente Veb | Mechanischer bandpass |
| DE2124787C2 (de) * | 1971-05-19 | 1984-07-12 | ANT Nachrichtentechnik GmbH, 7150 Backnang | Mechanische Filter |
| FR2360212A1 (fr) * | 1976-07-26 | 1978-02-24 | Lignes Telegraph Telephon | Perfectionnement au couplage pour filtres electromecaniques |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2240306A (en) * | 1939-10-24 | 1941-04-29 | Bell Telephone Labor Inc | Electromechanical filter |
| BE470334A (cs) * | 1946-01-07 | |||
| NL170958B (nl) * | 1951-07-02 | Hercules Inc | Werkwijze voor het bereiden van silanen die een of meer aan silicium gebonden hydrolyseerbare groepen en ten minste een via een koolstofketen aan silicium gebonden reactieve groep bevatten, alsmede werkwijze voor het hechten van een polymeer aan een substraat onder toepassing van een zodanig silaanderivaat. | |
| GB703020A (en) * | 1951-07-18 | 1954-01-27 | John Hugh Davey Walton | Improvements in or relating to frequency filters |
-
0
- NL NL114040D patent/NL114040C/xx active
- NL NL225484D patent/NL225484A/xx unknown
-
1957
- 1957-03-22 DE DE1957T0013399 patent/DE1242770B/de active Pending
-
1958
- 1958-02-12 CH CH358873D patent/CH358873A/de unknown
- 1958-02-19 FR FR1191702D patent/FR1191702A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL225484A (cs) | |
| FR1191702A (fr) | 1959-10-21 |
| CH358873A (de) | 1961-12-15 |
| DE1242770B (de) | 1967-06-22 |