NL30417C - - Google Patents
Info
- Publication number
- NL30417C NL30417C NL30417DA NL30417C NL 30417 C NL30417 C NL 30417C NL 30417D A NL30417D A NL 30417DA NL 30417 C NL30417 C NL 30417C
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P5/00—Coupling devices of the waveguide type
- H01P5/02—Coupling devices of the waveguide type with invariable factor of coupling
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P5/00—Coupling devices of the waveguide type
- H01P5/04—Coupling devices of the waveguide type with variable factor of coupling
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US264132A US1778395A (en) | 1928-03-23 | 1928-03-23 | Coupling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL30417C true NL30417C (en, 2012) |
Family
ID=23004722
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL30417D NL30417C (en, 2012) | 1928-03-23 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US1778395A (en, 2012) |
| DE (1) | DE495354C (en, 2012) |
| GB (1) | GB308664A (en, 2012) |
| NL (1) | NL30417C (en, 2012) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2530329A (en) * | 1947-04-24 | 1950-11-14 | Motorola Inc | Television receiver antenna input circuit |
| NL82347C (en, 2012) * | 1950-06-02 | 1900-01-01 | ||
| US2705737A (en) * | 1951-01-09 | 1955-04-05 | Brueckmann Helmut | Transmission line support |
| US4267532A (en) * | 1979-10-11 | 1981-05-12 | W. L. Keefauver, Bell Laboratories | Adjustable microstrip and stripline tuners |
| US4999642A (en) * | 1988-03-01 | 1991-03-12 | Wells Donald H | Transmission line coupling device with closed impedance matching loop |
| US5083136A (en) * | 1989-11-16 | 1992-01-21 | Wells Donald H | Transmission line coupling device with closed impedance matching loop |
| US5463405A (en) * | 1994-05-20 | 1995-10-31 | Valor Enterprises, Inc. | Cellular telephone coupling network |
-
0
- NL NL30417D patent/NL30417C/xx active
-
1928
- 1928-03-23 US US264132A patent/US1778395A/en not_active Expired - Lifetime
-
1929
- 1929-03-14 DE DER77483D patent/DE495354C/de not_active Expired
- 1929-03-25 GB GB9621/29A patent/GB308664A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB308664A (en) | 1930-01-30 |
| US1778395A (en) | 1930-10-14 |
| DE495354C (de) | 1930-04-07 |