JPS4918315A - - Google Patents
Info
- Publication number
- JPS4918315A JPS4918315A JP48043044A JP4304473A JPS4918315A JP S4918315 A JPS4918315 A JP S4918315A JP 48043044 A JP48043044 A JP 48043044A JP 4304473 A JP4304473 A JP 4304473A JP S4918315 A JPS4918315 A JP S4918315A
- Authority
- JP
- Japan
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B3/00—Recording by mechanical cutting, deforming or pressing, e.g. of grooves or pits; Reproducing by mechanical sensing; Record carriers therefor
- G11B3/68—Record carriers
- G11B3/70—Record carriers characterised by the selection of material or structure; Processes or apparatus specially adapted for manufacturing record carriers
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
- Manufacturing Of Magnetic Record Carriers (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
- Manufacturing Optical Record Carriers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1804372A GB1422943A (en) | 1972-04-19 | 1972-04-19 | Centre hole formation in an information storing disc |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS4918315A true JPS4918315A (enExample) | 1974-02-18 |
| JPS5346084B2 JPS5346084B2 (enExample) | 1978-12-11 |
Family
ID=10105668
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4304473A Expired JPS5346084B2 (enExample) | 1972-04-19 | 1973-04-16 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US3938810A (enExample) |
| JP (1) | JPS5346084B2 (enExample) |
| CA (1) | CA979372A (enExample) |
| DE (1) | DE2319231C3 (enExample) |
| FR (1) | FR2181037B1 (enExample) |
| GB (1) | GB1422943A (enExample) |
| IT (1) | IT984317B (enExample) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9439841B2 (en) | 2013-06-06 | 2016-09-13 | Ecolab Usa Inc. | Alcohol based sanitizer with improved dermal compatibility and feel |
| US12106781B2 (en) * | 2020-08-25 | 2024-10-01 | Phonocut Maschinen Gmbh | Cutter unit for cutting a phonographic record, cartridge for a cutter unit, blank for a phonographic record and method for reading information from a blank |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1195101A (en) * | 1916-08-15 | Apparatus for cutting grooves in record-disks | ||
| US683023A (en) * | 1901-04-12 | 1901-09-24 | Timothy J Donovan | Glass-cutting apparatus. |
| US1246925A (en) * | 1916-04-01 | 1917-11-20 | Hervey A Hunt | Gasket-cutter. |
| US2142563A (en) * | 1934-11-12 | 1939-01-03 | Edward R Harris | Sound recording and reproducing head |
| US2219930A (en) * | 1939-07-29 | 1940-10-29 | Rca Corp | Phonographic apparatus |
| US3535182A (en) * | 1966-11-16 | 1970-10-20 | Intersound Ltd | Foil-shaped sound record and method of making same |
| US3589736A (en) * | 1967-08-02 | 1971-06-29 | Harry Gorman | Sound-reproducing container covers |
| DE1809632B2 (de) * | 1968-11-19 | 1972-04-06 | Teldec Telefunken Decca Schallplat ten GmbH, 2000 Hamburg | Verfahren zum Zentrieren von Matrizen fur Schallplattenpreßformen |
| FR2066862A1 (enExample) * | 1969-10-15 | 1971-08-13 | Riquois Philippe |
-
1972
- 1972-04-19 GB GB1804372A patent/GB1422943A/en not_active Expired
-
1973
- 1973-03-12 US US05/340,605 patent/US3938810A/en not_active Expired - Lifetime
- 1973-04-16 JP JP4304473A patent/JPS5346084B2/ja not_active Expired
- 1973-04-16 DE DE2319231A patent/DE2319231C3/de not_active Expired
- 1973-04-16 CA CA168,835A patent/CA979372A/en not_active Expired
- 1973-04-19 IT IT49576/73A patent/IT984317B/it active
- 1973-04-19 FR FR7314451A patent/FR2181037B1/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR2181037A1 (enExample) | 1973-11-30 |
| JPS5346084B2 (enExample) | 1978-12-11 |
| GB1422943A (en) | 1976-01-28 |
| DE2319231C3 (de) | 1984-08-30 |
| IT984317B (it) | 1974-11-20 |
| CA979372A (en) | 1975-12-09 |
| FR2181037B1 (enExample) | 1976-09-10 |
| DE2319231A1 (de) | 1973-10-25 |
| US3938810A (en) | 1976-02-17 |
| DE2319231B2 (de) | 1980-09-11 |