NL7402388A - FILTER CHAIN. - Google Patents
FILTER CHAIN.Info
- Publication number
- NL7402388A NL7402388A NL7402388A NL7402388A NL7402388A NL 7402388 A NL7402388 A NL 7402388A NL 7402388 A NL7402388 A NL 7402388A NL 7402388 A NL7402388 A NL 7402388A NL 7402388 A NL7402388 A NL 7402388A
- Authority
- NL
- Netherlands
- Prior art keywords
- filter chain
- chain
- filter
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
- H03H9/46—Filters
- H03H9/54—Filters comprising resonators of piezo-electric or electrostrictive material
- H03H9/542—Filters comprising resonators of piezo-electric or electrostrictive material including passive elements
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL7402388A NL178380C (en) | 1974-02-21 | 1974-02-21 | PIEZO ELECTRIC FILTER. |
DE19752506408 DE2506408C2 (en) | 1974-02-21 | 1975-02-15 | Filter chain |
GB671675A GB1504333A (en) | 1974-02-21 | 1975-02-17 | Filter chain |
SE7501802A SE407651B (en) | 1974-02-21 | 1975-02-18 | FILTER CHAIN |
FR7505171A FR2262443B1 (en) | 1974-02-21 | 1975-02-19 | |
JP2043675A JPS50120237A (en) | 1974-02-21 | 1975-02-20 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL7402388A NL178380C (en) | 1974-02-21 | 1974-02-21 | PIEZO ELECTRIC FILTER. |
Publications (3)
Publication Number | Publication Date |
---|---|
NL7402388A true NL7402388A (en) | 1975-08-25 |
NL178380B NL178380B (en) | 1985-10-01 |
NL178380C NL178380C (en) | 1986-03-03 |
Family
ID=19820800
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL7402388A NL178380C (en) | 1974-02-21 | 1974-02-21 | PIEZO ELECTRIC FILTER. |
Country Status (6)
Country | Link |
---|---|
JP (1) | JPS50120237A (en) |
DE (1) | DE2506408C2 (en) |
FR (1) | FR2262443B1 (en) |
GB (1) | GB1504333A (en) |
NL (1) | NL178380C (en) |
SE (1) | SE407651B (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5297039U (en) * | 1976-01-17 | 1977-07-20 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3585537A (en) * | 1969-02-10 | 1971-06-15 | Bell Telephone Labor Inc | Electric wave filters |
-
1974
- 1974-02-21 NL NL7402388A patent/NL178380C/en not_active IP Right Cessation
-
1975
- 1975-02-15 DE DE19752506408 patent/DE2506408C2/en not_active Expired
- 1975-02-17 GB GB671675A patent/GB1504333A/en not_active Expired
- 1975-02-18 SE SE7501802A patent/SE407651B/en unknown
- 1975-02-19 FR FR7505171A patent/FR2262443B1/fr not_active Expired
- 1975-02-20 JP JP2043675A patent/JPS50120237A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
SE407651B (en) | 1979-04-02 |
SE7501802A (en) | 1975-08-22 |
GB1504333A (en) | 1978-03-22 |
SE7501802L (en) | 1975-08-22 |
JPS50120237A (en) | 1975-09-20 |
NL178380C (en) | 1986-03-03 |
FR2262443B1 (en) | 1977-04-15 |
DE2506408A1 (en) | 1975-08-28 |
FR2262443A1 (en) | 1975-09-19 |
NL178380B (en) | 1985-10-01 |
DE2506408C2 (en) | 1985-09-26 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
BC | A request for examination has been filed | ||
A85 | Still pending on 85-01-01 | ||
V1 | Lapsed because of non-payment of the annual fee |