NL42079C - - Google Patents
Info
- Publication number
- NL42079C NL42079C NL63314A NL63314A NL42079C NL 42079 C NL42079 C NL 42079C NL 63314 A NL63314 A NL 63314A NL 63314 A NL63314 A NL 63314A NL 42079 C NL42079 C NL 42079C
- Authority
- NL
- Netherlands
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3329731A GB393610A (en) | 1931-12-01 | 1931-12-01 | Improvements in and relating to the recording of sound on films |
| GB3329831 | 1931-12-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL42079C true NL42079C (de) | 1937-10-26 |
Family
ID=1803081
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL63314A NL42079C (de) | 1931-12-01 | 1932-11-24 |
Country Status (6)
| Country | Link |
|---|---|
| AT (1) | AT144556B (de) |
| CH (1) | CH167553A (de) |
| DE (1) | DE700267C (de) |
| DK (1) | DK48475C (de) |
| GB (1) | GB393610A (de) |
| NL (1) | NL42079C (de) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE940377C (de) * | 1932-04-09 | 1956-03-15 | Telefunken Gmbh | Verfahren zum Herstellen von grundgeraeuschfreien Lichttonaufzeichnungen in Vielzackenschrift |
| DE746290C (de) * | 1940-05-24 | 1944-06-15 | Tobis Tonbild Syndikat G M B H | Lichttonfilm |
| US2937915A (en) * | 1955-12-19 | 1960-05-24 | United Geophysical Corp | Recording system |
-
1931
- 1931-12-01 GB GB3329731A patent/GB393610A/en not_active Expired
-
1932
- 1932-09-19 DK DK48475D patent/DK48475C/da active
- 1932-10-14 DE DE1932P0066209 patent/DE700267C/de not_active Expired
- 1932-11-03 AT AT144556D patent/AT144556B/de active
- 1932-11-14 CH CH167553D patent/CH167553A/de unknown
- 1932-11-24 NL NL63314A patent/NL42079C/xx active
Also Published As
| Publication number | Publication date |
|---|---|
| DK48475C (da) | 1934-03-05 |
| DE700267C (de) | 1940-12-17 |
| CH167553A (de) | 1934-02-28 |
| GB393610A (en) | 1933-06-01 |
| AT144556B (de) | 1936-02-10 |