DE2421009C2 - Mechanische Schreibmaschine - Google Patents
Mechanische SchreibmaschineInfo
- Publication number
- DE2421009C2 DE2421009C2 DE2421009A DE2421009A DE2421009C2 DE 2421009 C2 DE2421009 C2 DE 2421009C2 DE 2421009 A DE2421009 A DE 2421009A DE 2421009 A DE2421009 A DE 2421009A DE 2421009 C2 DE2421009 C2 DE 2421009C2
- Authority
- DE
- Germany
- Prior art keywords
- key
- lever
- type
- levers
- character keys
- Prior art date
- 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.)
- Expired
Links
- 238000000034 method Methods 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Classifications
- 
        - B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J7/00—Type-selecting or type-actuating mechanisms
- B41J7/02—Type-lever actuating mechanisms
 
Landscapes
- Accessory Devices And Overall Control Thereof (AREA)
- Push-Button Switches (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title | 
|---|---|---|---|
| JP5148273A JPS572511B2 (cs) | 1973-05-08 | 1973-05-08 | 
Publications (3)
| Publication Number | Publication Date | 
|---|---|
| DE2421009A1 DE2421009A1 (de) | 1974-11-28 | 
| DE2421009B1 DE2421009B1 (de) | 1981-05-14 | 
| DE2421009C2 true DE2421009C2 (de) | 1982-01-14 | 
Family
ID=12888163
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date | 
|---|---|---|---|
| DE2421009A Expired DE2421009C2 (de) | 1973-05-08 | 1974-04-30 | Mechanische Schreibmaschine | 
Country Status (3)
| Country | Link | 
|---|---|
| US (1) | US3893559A (cs) | 
| JP (1) | JPS572511B2 (cs) | 
| DE (1) | DE2421009C2 (cs) | 
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title | 
|---|---|---|---|---|
| NL7709542A (nl) * | 1977-08-30 | 1979-03-02 | Macgregor Comarain Holland B V | Klem- en schuifinrichting. | 
| US4500978A (en) * | 1980-04-23 | 1985-02-19 | Seismograph Service Corporation | Seismographic method and apparatus using scaled sound sources | 
| GB2323331B (en) | 1997-03-21 | 2000-11-22 | Simon Richard Daniel | Collapsible keyboard | 
| WO1999024963A1 (en) * | 1997-11-12 | 1999-05-20 | Think Outside | Collapsible keyboard | 
| US6734809B1 (en) * | 1999-04-02 | 2004-05-11 | Think Outside, Inc. | Foldable keyboard | 
| US6781077B2 (en) | 2000-12-14 | 2004-08-24 | Think Outside, Inc. | Keyswitch and actuator structure | 
| CN119376568A (zh) | 2018-02-13 | 2025-01-28 | 株式会社和冠 | 位置检测装置以及控制装置 | 
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title | 
|---|---|---|---|---|
| DE392970C (de) * | 1924-03-27 | Franz Sandor | Tastenhebellagerung fuer Schreibmaschinen | |
| US990306A (en) * | 1901-12-11 | 1911-04-25 | Yost Writing Machine Co | Type-writing machine. | 
| US1391020A (en) * | 1922-05-03 | 1921-09-20 | Pobation | |
| US1689888A (en) * | 1926-09-16 | 1928-10-30 | Royal Typewriter Co Inc | Typewriting machine | 
| FR1084769A (fr) * | 1953-07-03 | 1955-01-24 | Machine à écrire portable à éléments moulés | |
| US2816640A (en) * | 1954-08-16 | 1957-12-17 | Smith Corona Inc | Type bar actions for typewriters | 
| CH384597A (it) * | 1960-11-26 | 1964-11-30 | Olivetti & Co Spa | Cinematico di scrittura per macchine per scrivere a mano | 
- 
        1973
        - 1973-05-08 JP JP5148273A patent/JPS572511B2/ja not_active Expired
 
- 
        1974
        - 1974-04-26 US US464481A patent/US3893559A/en not_active Expired - Lifetime
- 1974-04-30 DE DE2421009A patent/DE2421009C2/de not_active Expired
 
Also Published As
| Publication number | Publication date | 
|---|---|
| JPS572511B2 (cs) | 1982-01-16 | 
| US3893559A (en) | 1975-07-08 | 
| DE2421009A1 (de) | 1974-11-28 | 
| DE2421009B1 (de) | 1981-05-14 | 
| JPS505123A (cs) | 1975-01-20 | 
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Legal Events
| Date | Code | Title | Description | 
|---|---|---|---|
| 8339 | Ceased/non-payment of the annual fee |