FR866703A - Perfectionnements apportés aux machines à calculer - Google Patents
Perfectionnements apportés aux machines à calculerInfo
- Publication number
- FR866703A FR866703A FR866703DA FR866703A FR 866703 A FR866703 A FR 866703A FR 866703D A FR866703D A FR 866703DA FR 866703 A FR866703 A FR 866703A
- Authority
- FR
- France
- Prior art keywords
- calculating machines
- machines
- calculating
- 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
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06C—DIGITAL COMPUTERS IN WHICH ALL THE COMPUTATION IS EFFECTED MECHANICALLY
- G06C7/00—Input mechanisms
- G06C7/02—Keyboards
- G06C7/04—Interlocking devices, e.g. between keys
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06C—DIGITAL COMPUTERS IN WHICH ALL THE COMPUTATION IS EFFECTED MECHANICALLY
- G06C7/00—Input mechanisms
- G06C7/02—Keyboards
- G06C7/06—Keyboards with one set of keys for each denomination
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Computing Systems (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Lock And Its Accessories (AREA)
- Toys (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB926761X | 1938-05-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR866703A true FR866703A (fr) | 1941-08-30 |
Family
ID=10727877
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR866703D Expired FR866703A (fr) | 1938-05-28 | 1939-05-22 | Perfectionnements apportés aux machines à calculer |
Country Status (4)
Country | Link |
---|---|
US (1) | US2356714A (fr) |
CH (1) | CH213285A (fr) |
DE (2) | DE926761C (fr) |
FR (1) | FR866703A (fr) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2678162A (en) * | 1954-05-11 | Computing machine | ||
US2741426A (en) * | 1956-04-10 | golemon | ||
US2773647A (en) * | 1956-12-11 | Grand total accumulating mechanism | ||
US2729393A (en) * | 1956-01-03 | heitlinger | ||
US2778569A (en) * | 1957-01-22 | Split clearing mechanism | ||
US2547063A (en) * | 1946-09-12 | 1951-04-03 | Felt & Tarrant Mfg Company | Key-driven calculating machine |
US2569508A (en) * | 1947-12-02 | 1951-10-02 | Bell Punch Co Ltd | Key-operated calculator |
US2662691A (en) * | 1948-11-22 | 1953-12-15 | Bell Punch Co Ltd | Numeral wheel actuating mechanism |
US2646219A (en) * | 1949-11-22 | 1953-07-21 | Felt And Tarrant Mfg Company | Key-driven calculating machine |
US2628026A (en) * | 1949-11-22 | 1953-02-10 | Felt And Tarrant Mfg Company | Key-driven calculating machine |
US2881977A (en) * | 1952-11-05 | 1959-04-14 | Donald H Reeves | Key operated portable calculating machine |
US2850230A (en) * | 1955-03-02 | 1958-09-02 | Blanchard D Smith | Calculating machine |
-
1939
- 1939-05-22 FR FR866703D patent/FR866703A/fr not_active Expired
- 1939-05-24 US US275375A patent/US2356714A/en not_active Expired - Lifetime
- 1939-05-26 CH CH213285D patent/CH213285A/de unknown
- 1939-05-27 DE DEB4946D patent/DE926761C/de not_active Expired
- 1939-05-27 DE DEB4947D patent/DE920577C/de not_active Expired
Also Published As
Publication number | Publication date |
---|---|
CH213285A (de) | 1941-01-31 |
US2356714A (en) | 1944-08-22 |
DE920577C (de) | 1954-11-25 |
DE926761C (de) | 1955-04-25 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
FR845884A (fr) | Perfectionnements apportés aux machines à calculer | |
FR857586A (fr) | Perfectionnements apportés aux machines à écrire | |
FR866703A (fr) | Perfectionnements apportés aux machines à calculer | |
FR837012A (fr) | Perfectionnements apportés aux machines à calculer | |
FR860790A (fr) | Perfectionnements apportés aux machines à décortiquer | |
FR861862A (fr) | Perfectionnements aux machines à chiffrer | |
FR838826A (fr) | Perfectionnements aux meules à tronconner | |
FR839785A (fr) | Perfectionnements apportés aux machines à calculer | |
FR851750A (fr) | Perfectionnements aux machines à calculer | |
FR867531A (fr) | Perfectionnements apportés aux machines à calculer | |
FR854457A (fr) | Perfectionnements aux machines à calculer | |
FR843659A (fr) | Perfectionnements aux métiers à tisser circulaires | |
FR875817A (fr) | Perfectionnements apportés aux machines à sténotyper | |
FR858609A (fr) | Perfectionnements aux machines à empaqueter | |
FR861117A (fr) | Perfectionnements apportés aux machines à tricoter | |
FR872515A (fr) | Perfectionnements aux machines à calculer | |
FR872511A (fr) | Perfectionnements aux machines à calculer | |
FR872512A (fr) | Perfectionnements aux machines à calculer | |
FR872514A (fr) | Perfectionnements aux machines à calculer | |
FR908352A (fr) | Perfectionnements aux machines à calculer | |
FR872516A (fr) | Perfectionnements aux machines à calculer | |
FR49082E (fr) | Perfectionnements aux métiers à tisser | |
FR857128A (fr) | Perfectionnements aux machines à multiplier | |
FR860827A (fr) | Perfectionnements aux machines à statistiques | |
FR854192A (fr) | Perfectionnements aux machines frigorifiques |