BE658516A - - Google Patents
Info
- Publication number
- BE658516A BE658516A BE658516DA BE658516A BE 658516 A BE658516 A BE 658516A BE 658516D A BE658516D A BE 658516DA BE 658516 A BE658516 A BE 658516A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G7/00—Capacitors in which the capacitance is varied by non-mechanical means; Processes of their manufacture
- H01G7/02—Electrets, i.e. having a permanently-polarised dielectric
- H01G7/021—Electrets, i.e. having a permanently-polarised dielectric having an organic dielectric
- H01G7/023—Electrets, i.e. having a permanently-polarised dielectric having an organic dielectric of macromolecular compounds
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Organic Insulating Materials (AREA)
- Treatments Of Macromolecular Shaped Articles (AREA)
- Measurement Of Radiation (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US33910164A | 1964-01-21 | 1964-01-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE658516A true BE658516A (en) | 1965-05-17 |
Family
ID=23327507
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE658516D BE658516A (en) | 1964-01-21 | 1965-01-19 |
Country Status (8)
| Country | Link |
|---|---|
| AT (1) | AT270022B (en) |
| BE (1) | BE658516A (en) |
| CH (1) | CH464357A (en) |
| ES (1) | ES308344A1 (en) |
| FR (1) | FR1465376A (en) |
| GB (1) | GB1046142A (en) |
| LU (1) | LU47820A1 (en) |
| NL (1) | NL6500604A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2201548B (en) * | 1987-02-25 | 1991-07-31 | Harold Wilson Meredith Pook | Electret elements |
| DE202009014001U1 (en) | 2009-10-15 | 2010-03-18 | Bolst, Klaus, Dr.-Ing. | Filter system consisting of an electret filter and an upstream ionization unit to increase the performance of the electret filter and extend the service life of it in terms of its electrical and electrostatic properties |
-
1965
- 1965-01-18 NL NL6500604A patent/NL6500604A/xx unknown
- 1965-01-19 BE BE658516D patent/BE658516A/xx unknown
- 1965-01-19 CH CH70765A patent/CH464357A/en unknown
- 1965-01-19 FR FR2422A patent/FR1465376A/en not_active Expired
- 1965-01-20 GB GB257065A patent/GB1046142A/en not_active Expired
- 1965-01-20 AT AT42865A patent/AT270022B/en active
- 1965-01-20 ES ES0308344A patent/ES308344A1/en not_active Expired
- 1965-01-21 LU LU47820A patent/LU47820A1/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| NL6500604A (en) | 1965-07-22 |
| ES308344A1 (en) | 1965-05-01 |
| GB1046142A (en) | 1966-10-19 |
| FR1465376A (en) | 1967-01-13 |
| AT270022B (en) | 1969-04-10 |
| LU47820A1 (en) | 1965-03-22 |
| CH464357A (en) | 1968-10-31 |