NL268386A - - Google Patents
Info
- Publication number
- NL268386A NL268386A NL268386DA NL268386A NL 268386 A NL268386 A NL 268386A NL 268386D A NL268386D A NL 268386DA NL 268386 A NL268386 A NL 268386A
- Authority
- NL
- Netherlands
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
- G01V1/02—Generating seismic energy
- G01V1/04—Details
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
- H03F3/21—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only
- H03F3/217—Class D power amplifiers; Switching amplifiers
- H03F3/2173—Class D power amplifiers; Switching amplifiers of the bridge type
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US5598360A | 1960-09-14 | 1960-09-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL268386A true NL268386A (en) |
Family
ID=22001380
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL268386D NL268386A (en) | 1960-09-14 |
Country Status (2)
| Country | Link |
|---|---|
| GB (1) | GB987083A (en) |
| NL (1) | NL268386A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10088582B2 (en) | 2014-02-10 | 2018-10-02 | Cgg Services Sas | System and method for generating simultaneous plural frequencies in seismic exploration |
-
0
- NL NL268386D patent/NL268386A/xx unknown
-
1961
- 1961-09-05 GB GB3181661A patent/GB987083A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB987083A (en) | 1965-03-24 |