NL81638C - - Google Patents
Info
- Publication number
- NL81638C NL81638C NL81638DA NL81638C NL 81638 C NL81638 C NL 81638C NL 81638D A NL81638D A NL 81638DA NL 81638 C NL81638 C NL 81638C
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
- H01Q15/02—Refracting or diffracting devices, e.g. lens, prism
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
- H01Q15/02—Refracting or diffracting devices, e.g. lens, prism
- H01Q15/06—Refracting or diffracting devices, e.g. lens, prism comprising plurality of wave-guiding channels of different length
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US52349A US2596251A (en) | 1948-10-01 | 1948-10-01 | Wave guide lens system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL81638C true NL81638C (de) |
Family
ID=21977033
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL666609200A NL148874B (nl) | 1948-10-01 | Werkwijze voor het bereiden van een derivaat van 9,10-ethano-9,10-dihydroantraceen, dat op de 11-plaats gesubstitueerd is en een anticholinergische en antihistamine werking heeft en kan worden gebruikt ter behandeling van de ziekte van parkinson, werkwijze voor het bereiden van een geneesmiddel, dat dit derivaat bevat en gevormd geneesmiddel. | |
| NL81638D NL81638C (de) | 1948-10-01 |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL666609200A NL148874B (nl) | 1948-10-01 | Werkwijze voor het bereiden van een derivaat van 9,10-ethano-9,10-dihydroantraceen, dat op de 11-plaats gesubstitueerd is en een anticholinergische en antihistamine werking heeft en kan worden gebruikt ter behandeling van de ziekte van parkinson, werkwijze voor het bereiden van een geneesmiddel, dat dit derivaat bevat en gevormd geneesmiddel. |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US2596251A (de) |
| FR (1) | FR995899A (de) |
| NL (2) | NL81638C (de) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2749443A (en) * | 1951-08-22 | 1956-06-05 | Robert H Dicke | Molecular resonance system |
| US2841793A (en) * | 1953-01-22 | 1958-07-01 | Jr Cornelius Bryant Young | Microwave lens |
| US2897461A (en) * | 1953-09-14 | 1959-07-28 | Boeing Co | Wave guide construction |
| DE1068321B (de) * | 1957-12-19 | 1959-11-05 | ||
| NL288228A (de) * | 1962-02-23 | |||
| CA1100625A (en) * | 1977-04-01 | 1981-05-05 | Leland H. Hemming | Plane wave lens |
| US4640585A (en) * | 1983-04-28 | 1987-02-03 | Canon Kabushiki Kaisha | Semiconductor thin film lens |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2129669A (en) * | 1937-03-30 | 1938-09-13 | Bell Telephone Labor Inc | Guided wave transmission |
| US2283935A (en) * | 1938-04-29 | 1942-05-26 | Bell Telephone Labor Inc | Transmission, radiation, and reception of electromagnetic waves |
| US2461005A (en) * | 1940-04-05 | 1949-02-08 | Bell Telephone Labor Inc | Ultra high frequency transmission |
| US2415807A (en) * | 1942-01-29 | 1947-02-18 | Sperry Gyroscope Co Inc | Directive electromagnetic radiator |
| US2411872A (en) * | 1942-06-11 | 1946-12-03 | Bell Telephone Labor Inc | Microwave directive antenna |
| US2464269A (en) * | 1942-06-12 | 1949-03-15 | Raytheon Mfg Co | Method and means for controlling the polarization of radiant energy |
| US2473613A (en) * | 1942-07-09 | 1949-06-21 | Raytheon Mfg Co | Communication system |
| US2447768A (en) * | 1942-07-22 | 1948-08-24 | Bell Telephone Labor Inc | Microwave antenna |
| US2425488A (en) * | 1943-07-03 | 1947-08-12 | Rca Corp | Horn antenna |
| US2442951A (en) * | 1944-05-27 | 1948-06-08 | Rca Corp | System for focusing and for directing radio-frequency energy |
| GB598494A (en) * | 1944-11-16 | 1948-02-19 | Hazeltine Corp | High-frequency electromagnetic-wave translating element |
| US2508479A (en) * | 1944-11-16 | 1950-05-23 | Hazeltine Research Inc | High-frequency electromagneticwave translating arrangement |
| US2511610A (en) * | 1944-11-16 | 1950-06-13 | Hazeltine Research Inc | High-frequency electromagneticwave translating element |
| US2528582A (en) * | 1947-10-30 | 1950-11-07 | Rca Corp | Lens for focusing radio waves |
-
0
- NL NL666609200A patent/NL148874B/xx unknown
- NL NL81638D patent/NL81638C/xx active
-
1948
- 1948-10-01 US US52349A patent/US2596251A/en not_active Expired - Lifetime
-
1949
- 1949-09-21 FR FR995899D patent/FR995899A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL148874B (nl) | |
| FR995899A (fr) | 1951-12-10 |
| US2596251A (en) | 1952-05-13 |