US2514035A - Electrionic accounting apparatus - Google Patents
Electrionic accounting apparatus Download PDFInfo
- Publication number
- US2514035A US2514035A US515719A US51571943A US2514035A US 2514035 A US2514035 A US 2514035A US 515719 A US515719 A US 515719A US 51571943 A US51571943 A US 51571943A US 2514035 A US2514035 A US 2514035A
- Authority
- US
- United States
- Prior art keywords
- entry
- electronic
- july
- sheets
- accounting apparatus
- 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 - Lifetime
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Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F7/00—Methods or arrangements for processing data by operating upon the order or content of the data handled
- G06F7/38—Methods or arrangements for performing computations using exclusively denominational number representation, e.g. using binary, ternary, decimal representation
- G06F7/48—Methods or arrangements for performing computations using exclusively denominational number representation, e.g. using binary, ternary, decimal representation using non-contact-making devices, e.g. tube, solid state device; using unspecified devices
- G06F7/491—Computations with decimal numbers radix 12 or 20.
- G06F7/498—Computations with decimal numbers radix 12 or 20. using counter-type accumulators
- G06F7/4981—Adding; Subtracting
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G1/00—Control arrangements or circuits, of interest only in connection with cathode-ray tube indicators; General aspects or details, e.g. selection emphasis on particular characters, dashed line or dotted line generation; Preprocessing of data
- G09G1/06—Control arrangements or circuits, of interest only in connection with cathode-ray tube indicators; General aspects or details, e.g. selection emphasis on particular characters, dashed line or dotted line generation; Preprocessing of data using single beam tubes, e.g. three-dimensional or perspective representation, rotation or translation of display pattern, hidden lines, shadows
- G09G1/08—Control arrangements or circuits, of interest only in connection with cathode-ray tube indicators; General aspects or details, e.g. selection emphasis on particular characters, dashed line or dotted line generation; Preprocessing of data using single beam tubes, e.g. three-dimensional or perspective representation, rotation or translation of display pattern, hidden lines, shadows the beam directly tracing characters, the information to be displayed controlling the deflection and the intensity as a function of time in two spatial co-ordinates, e.g. according to a cartesian co-ordinate system
- G09G1/12—Control arrangements or circuits, of interest only in connection with cathode-ray tube indicators; General aspects or details, e.g. selection emphasis on particular characters, dashed line or dotted line generation; Preprocessing of data using single beam tubes, e.g. three-dimensional or perspective representation, rotation or translation of display pattern, hidden lines, shadows the beam directly tracing characters, the information to be displayed controlling the deflection and the intensity as a function of time in two spatial co-ordinates, e.g. according to a cartesian co-ordinate system the deflection signals being produced by essentially analogue means
Definitions
- This invention is directed to ⁇ a novel electronic value totalizing and value manifesting apparatus.
- the general object of the invention is to provide an apparatus better and simpler than those disclosed in my former applications of Whichparticular note is to be taken of application Ser. No. 394,883, led May 23, 1941, now Patent No. 2,402,989 of July 2, 1946.
- the latter application disclosed totalizing apparatus in which chosen entries were made in electronic entry receiving and totalizing orders by operating them for diierentialtimes of an entry cycle.
- Each order included a plurality of electronic trigger circuits for combinationally manifesting different digits of a notation.
- 'I'hese circuits were connected for progressive value registering operation in response to successive entry pulses.
- As many entry pulses were applied as the number of value increments in the digit to be entered; e. g., digit 9 was entered by applying nine entry pulses.
- the entry pulses were produced by electronic means which was rendered effective for a diierential part of the cycle to respond to continuously applied oscillator pulses.
- an entry controlling trigger circuit For rendering the entry pulsing means effective, an entry controlling trigger circuit was tripped from one status to another and back again by pulses derived from a continuously operating electronic commutator. Prior to an entry, a chosen value setting was made of value selecting means. Then a single entry cycle means was brought into operation to establish a delimited cycle during which a number of the continuously produced commutator pulses had differential time relationship. Two of the commutator pulses were transmitted to the entry controlling trigger circuit, the first pulse tripping it on to render the entry pulsing means effective and the second tripping it OIT to stop the entry pulsing operation.
- the value setting transmitted the rst pulse at a diierential time, starting the entry pulsing operation.
- a second commutator pulse was fed to the entry control trigger circuit and interrupted the entry pulsing operation.
- the two ⁇ commutator pulses were separated by a 4,differential cyclic time which permitted the entry means to produce a number of pulses equal to the value selected for entry in the order.
- subtraction control means was brought' into operation.
- a commutator pulse was fed to the entry'control trigger circuit at a fixed time of the cycle to initiate entry pulsing.
- a second commutator pulse was applied to the entry control trigger circuit and terminated entry pulsing.
- the result was the production of a number of entry pulses equal to the complement of the value chosen for subtractive entry.
- Elusive one means was operated under control of a commutator pulse at a xed time'oi the cycle, during a subtractive entry.
- Carry means were provided between adjacent orders'of the value manifesting units.
- the carry means between two orders was pulsed insynchronism with the entry pulsing of the lower of the two orders.
- When such lower order attained a 9 value status it prepared the carry means to operate in response to the next carry control-pulse.
- va carry control pulse operated the carry means which acted through other than'the'regular entry means of the next order to enter a carry value therein.
- Special carry through means was provided to produce a carry entry in a second higher order when the first higher order was in 9 value status at the time it received a carry entry from its preceding order.
- the totals standing in the accumulator orders were indicated in digit outline form byl cathode ray tubes.
- Control of each cathode ray tube was effected by a related order of the value totaling means through a plurality of ⁇ electronic relays. Each relay was selectively operated under control of a combinational read-out circuit established by a composite digit manifesting pattern of the electronic value manifesting means of the order. When a particular digit was manifested,
- the present electronic totaling apparatus requires no continuously operating electronic commutator but utilizes a start-stop electronic commutator, the principles of which are claimed in my copending application Ser. No. 584,463, filed ditions at the diierent points ofthe commuta.-y
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Computing Systems (AREA)
- General Engineering & Computer Science (AREA)
- Mathematical Optimization (AREA)
- Pure & Applied Mathematics (AREA)
- Mathematical Analysis (AREA)
- Computational Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Computer Hardware Design (AREA)
- Electrotherapy Devices (AREA)
- Formation And Processing Of Food Products (AREA)
- Radiation-Therapy Devices (AREA)
- Video Image Reproduction Devices For Color Tv Systems (AREA)
Description
July 4, 1950 A. H. DlcKlNsoN 2,514,035
v ELECTRONIC CCOUN'I'IG` APPARATUS Filed Dec. 2v, 194s 19 sheets-sheet 1 I ATTORNEY July 4, 1950 A..`H.-DlcK| Ns.oN 2,514,035
ELECTRONIC ACCOUNTING Appmus Filed Dec. 27, 1943" 19 Sheets-Sheet 2 /36 8 9 /46 u FIG s 7 w @a a. 1' 5 f6 2 n30 0i '217 Mi. a l 225 2/4 e 21/ 2/9 23 i; a N d /37 HV/FNR, am,
ATTORNEY July 4, 1950 A. H. DlcKlNsoN 2,514,035
ELECTRONIC ACCOUNTING APPARATUS Filed Dec. 27, 194s 19 sheets-sheet s v Z l 5 {QXL/l 4' JDM l @A z r f ATTORN EY A July 4, 1950 A. H. DICKINSON ELECTRONIC ACCOUNTING APPARATUS Filed Dec. 27, 1943 19 Sheets-Sheet 4 ATTORNEY `uly 4, 1950 A. H. DlcKlNsoN 2,514,035
ELECTRONIC ACCOUNTING APPARATUSv Filed neme?, 194:5- .19 sheds-sheet 5 al4a/M, 105 134, 12o
gwnwq *foga mlm ATTORNEY July 4, 1950 A. H.' DlcKlNsoN 2,514,035
ELECTRONIC ACCOUNTING APPARATUS Filed Dec. 27, 1943 '19-Sheets-Sheet 6 C 0MM U TA TOR aaa 90aaa 99d 'I3-95 asc/LATO INVENTOR BY l Flan
July 4, 1950 A. H. DlcKlNsoN ELEcTRoNxc ACCOUNTING APPARATUS 19 Sheets-Sheet '7 Filed Dec. 27, 1943 (um n Sum Sw ATTORNEY July 4, 1950 A. DlcKlNsoN ELECTRNIC ACCOUNTING-APPARATUS 19 Sheets-Sheet 8 Filed Dec. 27, 194,3l
ATTORNEY INVE To m 2./
wwwmx July 4,' 195o A. H. DICKINSQN ELECTRONIC ACCOUNTING APPARATUS 19 Sheets-Sheetv 9 Filed Dec. 27', 1943 n Q Q w.
July 4, 1950 A. H.D|cK|NsoN ELECTRONIC ACCOUNTING APPARATUS 19 sheets-sheet 1o Filed Dec. 27, 1943 N: @E A,
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ATTORNEY July 4, 1950 A. H. DlcKlNsoN ELECTRONIC ACCOUNTING APPARATUS 19 Sheets-Sheet 11 Filed Dec. 27, 1945 n AT'TORNEY July 4, 1950 A, H. DlcKlNseN ELECTRONIC ACCOUNTING APPARATUS Filed'n'eo. 27, 194s 19 Sheets-Shet 12 Smm kmwx
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July 4 1950 l A. H. DlcKlN'soN 2,514,035
' ELECTRONIC ACCOUNTING APPARATUS Filed Deo. 27, 1'943 19 sheets-smeris /IZ a INVENTOR ra x05 ATTORNEY July 4, 1950 A. H; DlcKlNsoN ELECTRONIC ACCOUNTING APPARATUS Filed Dec. 27. i943 19 Sheets-Sheet 14 FIG. I2. FIG. 13. .WW/@29 D 9 7 6 5 4 3 2 l i .D 9 8 7 6 5 4 3 kf kf July 4, 1950 Filed D90. 27, 1915 .F ggg.
A. H. DICKINSON ELECTRONIC ACCOUNTING lAPPARATUS 1 9 Sheets-Sheet 15 INVENTOR www ` Ai'ToRNEY July 4, 195o A. H. DICI-mw Y Fied Dec. 27, 194s 7 FIG. 16a.
67 SIU/2345 78 ELECTRNIC ACCOUNTING APPARATUS 19 ISheets--Sheezt i6 ATTORN EY July 4, 1950 A. H. DlcKlNsoN l 2,514,035
ELECTRONIC ACCOUNTING APPARATUS Filed Dec. 27,1943 19 Sheets-Sheet 17 ATTQRNEY July 4, 1950 A. H. DicklNsoN 2,514,035
ELECTRONIC ACCOUNTING APPARATUS Filed Dec. 27, 1943 19 sheets-sheet 18 FIG. 1.6.
ai .ssfwl Hauff@ lNvENToR @1 /IMM MJ ATTORNEY July 4, 1950 A. H. DlcKlNsoN 2,514,035
ELECTRONIC ACCOUNTING APPARATUS Filed DSG. 27, 1945 19 Sheets-Sheet 19 FIG. led. FIC. 17.
ATTORNEY Patented July 4, 1950 ELECTRONIC ACCOUNTING APPARATUS Arthur H. Dickinson, Greenwich, Conn., assignor .to International Business Machines .Corpora- Y., a corporation of New tion, New York, N. York Application December 27, 1943, Serial No. 515,719
14 Claims.
This invention is directed to `a novel electronic value totalizing and value manifesting apparatus. The general object of the invention is to provide an apparatus better and simpler than those disclosed in my former applications of Whichparticular note is to be taken of application Ser. No. 394,883, led May 23, 1941, now Patent No. 2,402,989 of July 2, 1946.
The latter application disclosed totalizing apparatus in which chosen entries were made in electronic entry receiving and totalizing orders by operating them for diierentialtimes of an entry cycle. Each order included a plurality of electronic trigger circuits for combinationally manifesting different digits of a notation. 'I'hese circuits were connected for progressive value registering operation in response to successive entry pulses. As many entry pulses were applied as the number of value increments in the digit to be entered; e. g., digit 9 was entered by applying nine entry pulses. The entry pulses were produced by electronic means which was rendered effective for a diierential part of the cycle to respond to continuously applied oscillator pulses. For rendering the entry pulsing means effective, an entry controlling trigger circuit was tripped from one status to another and back again by pulses derived from a continuously operating electronic commutator. Prior to an entry, a chosen value setting was made of value selecting means. Then a single entry cycle means was brought into operation to establish a delimited cycle during which a number of the continuously produced commutator pulses had differential time relationship. Two of the commutator pulses were transmitted to the entry controlling trigger circuit, the first pulse tripping it on to render the entry pulsing means effective and the second tripping it OIT to stop the entry pulsing operation. When a positive amount was chosen for entry in an order, the value setting transmitted the rst pulse at a diierential time, starting the entry pulsing operation. At a fixed time of the cycle, a second commutator pulse was fed to the entry control trigger circuit and interrupted the entry pulsing operation. The two `commutator pulses were separated by a 4,differential cyclic time which permitted the entry means to produce a number of pulses equal to the value selected for entry in the order. When a negative amount was to be en.- tered, subtraction control means was brought' into operation. During a subsequent entry cycle established by the single entry cycle means, a commutator pulse was fed to the entry'control trigger circuit at a fixed time of the cycle to initiate entry pulsing. `At a differential time selected by the value setting, a second commutator pulse was applied to the entry control trigger circuit and terminated entry pulsing. The result was the production of a number of entry pulses equal to the complement of the value chosen for subtractive entry. Elusive one means was operated under control of a commutator pulse at a xed time'oi the cycle, during a subtractive entry. Carry means were provided between adjacent orders'of the value manifesting units. The carry means between two orders was pulsed insynchronism with the entry pulsing of the lower of the two orders. When such lower order attained a 9 value status, it prepared the carry means to operate in response to the next carry control-pulse. Collaterally with the entry pulsing of the lower order to advance it from 9 to 0 value status, va carry control pulse operated the carry means which acted through other than'the'regular entry means of the next order to enter a carry value therein. Special carry through means was provided to produce a carry entry in a second higher order when the first higher order was in 9 value status at the time it received a carry entry from its preceding order. The totals standing in the accumulator orders were indicated in digit outline form byl cathode ray tubes. Control of each cathode ray tube was effected by a related order of the value totaling means through a plurality of `electronic relays. Each relay was selectively operated under control of a combinational read-out circuit established by a composite digit manifesting pattern of the electronic value manifesting means of the order. When a particular digit was manifested,
an electronic relay was operated and enabled the in my prior application. Ser. No. 394,883 will aid in an appreciation of some of the objects which arestated below.
The present electronic totaling apparatus requires no continuously operating electronic commutator but utilizes a start-stop electronic commutator, the principles of which are claimed in my copending application Ser. No. 584,463, filed ditions at the diierent points ofthe commuta.-y
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BE467059D BE467059A (en) | 1943-12-27 | ||
US515719A US2514035A (en) | 1943-12-27 | 1943-12-27 | Electrionic accounting apparatus |
US583273A US2456818A (en) | 1943-12-27 | 1945-03-17 | Electronic trigger circuit with pulse output attenuating means |
US583274A US2461412A (en) | 1943-12-27 | 1945-03-17 | Accounting apparatus |
GB12239/45A GB598565A (en) | 1943-12-27 | 1945-05-15 | Improvements in or relating to accumulating apparatus |
FR950260D FR950260A (en) | 1943-12-27 | 1946-07-11 | Improvements to accounting machines |
US123436A US2514037A (en) | 1943-12-27 | 1949-11-25 | Electronic commutator |
DEI2070A DE909635C (en) | 1943-12-27 | 1950-09-22 | Pulse-controlled electronic computing device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US515719A US2514035A (en) | 1943-12-27 | 1943-12-27 | Electrionic accounting apparatus |
US583274A US2461412A (en) | 1943-12-27 | 1945-03-17 | Accounting apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
US2514035A true US2514035A (en) | 1950-07-04 |
Family
ID=27058582
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US515719A Expired - Lifetime US2514035A (en) | 1943-12-27 | 1943-12-27 | Electrionic accounting apparatus |
US583274A Expired - Lifetime US2461412A (en) | 1943-12-27 | 1945-03-17 | Accounting apparatus |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US583274A Expired - Lifetime US2461412A (en) | 1943-12-27 | 1945-03-17 | Accounting apparatus |
Country Status (5)
Country | Link |
---|---|
US (2) | US2514035A (en) |
BE (1) | BE467059A (en) |
DE (1) | DE909635C (en) |
FR (1) | FR950260A (en) |
GB (1) | GB598565A (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2706597A (en) * | 1949-03-25 | 1955-04-19 | Remington Rand Inc | Carry impulse generator |
US2754059A (en) * | 1951-11-27 | 1956-07-10 | Jr Dwight D Wilcox | Electronic differential digital computer |
US2761620A (en) * | 1952-05-26 | 1956-09-04 | Clary Corp | Computing system |
US2780408A (en) * | 1951-06-22 | 1957-02-05 | Sperry Rand Corp | Electronic accumulator |
US2931571A (en) * | 1951-04-11 | 1960-04-05 | Ncr Co | Magnetic storage of multiple totals |
DE1090884B (en) * | 1952-12-09 | 1960-10-13 | Alfred G Weimershaus | Computing, in particular multiplying device |
DE1138259B (en) * | 1952-10-01 | 1962-10-18 | Ibm Deutschland | Arithmetic unit with display |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2591007A (en) * | 1949-12-17 | 1952-04-01 | Ncr Co | Electronic accounting machine |
GB705574A (en) * | 1949-06-18 | 1954-03-17 | British Tabulating Mach Co Ltd | Improvements in electronic multiplying apparatus |
NL162447B (en) * | 1950-07-14 | Braukmann Armaturen | REWINDABLE FILTER DEVICE. | |
NL92835C (en) * | 1951-04-11 | |||
US2854192A (en) * | 1954-11-23 | 1958-09-30 | Ibm | Timing and data selection means for a register display device |
Citations (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB355705A (en) * | 1930-05-23 | 1931-08-24 | Alec Harley Reeves | Improvements in or relating to electrical measuring systems and apparatus therefor |
US2045435A (en) * | 1931-11-27 | 1936-06-23 | Ibm | Record controlled and record making accounting machine |
US2099754A (en) * | 1932-03-25 | 1937-11-23 | Associated Electric Lab Inc | Calculating machine |
US2158285A (en) * | 1937-06-22 | 1939-05-16 | Rca Corp | Impulse measuring circuit |
US2195267A (en) * | 1936-02-06 | 1940-03-26 | Bush Mfg Company | Calculating machine |
US2250847A (en) * | 1938-05-14 | 1941-07-29 | Ibm | Electrical accumulator |
US2264623A (en) * | 1940-01-09 | 1941-12-02 | Ibm | Character displaying control apparatus |
US2281350A (en) * | 1940-04-10 | 1942-04-28 | Ibm | Number displaying device |
US2282028A (en) * | 1938-06-21 | 1942-05-05 | Ibm | Electrical accumulator |
US2324314A (en) * | 1941-11-13 | 1943-07-13 | Gen Electric | Electronic switch |
US2332300A (en) * | 1941-11-07 | 1943-10-19 | Gen Electric | Interval timer |
US2349810A (en) * | 1941-12-01 | 1944-05-30 | Gen Electric | Counter circuit |
US2369662A (en) * | 1943-06-05 | 1945-02-20 | Standard Telephones Cables Ltd | Intelligence transmission system |
US2373134A (en) * | 1942-08-06 | 1945-04-10 | Bell Telephone Labor Inc | Signaling system |
US2398771A (en) * | 1943-05-24 | 1946-04-23 | Ncr Co | Electronic device |
US2402988A (en) * | 1941-05-23 | 1946-07-02 | Ibm | Accounting apparatus |
US2402989A (en) * | 1940-01-20 | 1946-07-02 | Ibm | Accumulating apparatus |
US2403873A (en) * | 1942-08-06 | 1946-07-09 | Ncr Co | Impulse emitter |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL66002C (en) * | 1939-06-30 | |||
US2267827A (en) * | 1939-07-26 | 1941-12-30 | Bell Telephone Labor Inc | Electric signaling system |
US2264587A (en) * | 1940-01-09 | 1941-12-02 | Ibm | Character displaying control apparatus |
US2267812A (en) * | 1940-01-11 | 1941-12-30 | Ibm | Clock time and call indicating system |
US2315456A (en) * | 1940-05-15 | 1943-03-30 | Bell Telephone Labor Inc | Call indicator |
NL69924C (en) * | 1940-07-23 | |||
US2363941A (en) * | 1941-03-05 | 1944-11-28 | Int Standard Electric Corp | Angle indicating apparatus |
US2451859A (en) * | 1943-02-25 | 1948-10-19 | Ncr Co | Electron tube variable impulse communication system |
-
0
- BE BE467059D patent/BE467059A/xx unknown
-
1943
- 1943-12-27 US US515719A patent/US2514035A/en not_active Expired - Lifetime
-
1945
- 1945-03-17 US US583274A patent/US2461412A/en not_active Expired - Lifetime
- 1945-05-15 GB GB12239/45A patent/GB598565A/en not_active Expired
-
1946
- 1946-07-11 FR FR950260D patent/FR950260A/en not_active Expired
-
1950
- 1950-09-22 DE DEI2070A patent/DE909635C/en not_active Expired
Patent Citations (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB355705A (en) * | 1930-05-23 | 1931-08-24 | Alec Harley Reeves | Improvements in or relating to electrical measuring systems and apparatus therefor |
US2045435A (en) * | 1931-11-27 | 1936-06-23 | Ibm | Record controlled and record making accounting machine |
US2099754A (en) * | 1932-03-25 | 1937-11-23 | Associated Electric Lab Inc | Calculating machine |
US2195267A (en) * | 1936-02-06 | 1940-03-26 | Bush Mfg Company | Calculating machine |
US2158285A (en) * | 1937-06-22 | 1939-05-16 | Rca Corp | Impulse measuring circuit |
US2250847A (en) * | 1938-05-14 | 1941-07-29 | Ibm | Electrical accumulator |
US2282028A (en) * | 1938-06-21 | 1942-05-05 | Ibm | Electrical accumulator |
US2264623A (en) * | 1940-01-09 | 1941-12-02 | Ibm | Character displaying control apparatus |
US2402989A (en) * | 1940-01-20 | 1946-07-02 | Ibm | Accumulating apparatus |
US2281350A (en) * | 1940-04-10 | 1942-04-28 | Ibm | Number displaying device |
US2402988A (en) * | 1941-05-23 | 1946-07-02 | Ibm | Accounting apparatus |
US2332300A (en) * | 1941-11-07 | 1943-10-19 | Gen Electric | Interval timer |
US2324314A (en) * | 1941-11-13 | 1943-07-13 | Gen Electric | Electronic switch |
US2349810A (en) * | 1941-12-01 | 1944-05-30 | Gen Electric | Counter circuit |
US2373134A (en) * | 1942-08-06 | 1945-04-10 | Bell Telephone Labor Inc | Signaling system |
US2403873A (en) * | 1942-08-06 | 1946-07-09 | Ncr Co | Impulse emitter |
US2398771A (en) * | 1943-05-24 | 1946-04-23 | Ncr Co | Electronic device |
US2369662A (en) * | 1943-06-05 | 1945-02-20 | Standard Telephones Cables Ltd | Intelligence transmission system |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2706597A (en) * | 1949-03-25 | 1955-04-19 | Remington Rand Inc | Carry impulse generator |
US2931571A (en) * | 1951-04-11 | 1960-04-05 | Ncr Co | Magnetic storage of multiple totals |
US2780408A (en) * | 1951-06-22 | 1957-02-05 | Sperry Rand Corp | Electronic accumulator |
US2754059A (en) * | 1951-11-27 | 1956-07-10 | Jr Dwight D Wilcox | Electronic differential digital computer |
US2761620A (en) * | 1952-05-26 | 1956-09-04 | Clary Corp | Computing system |
DE1138259B (en) * | 1952-10-01 | 1962-10-18 | Ibm Deutschland | Arithmetic unit with display |
DE1090884B (en) * | 1952-12-09 | 1960-10-13 | Alfred G Weimershaus | Computing, in particular multiplying device |
Also Published As
Publication number | Publication date |
---|---|
FR950260A (en) | 1949-09-22 |
US2461412A (en) | 1949-02-08 |
GB598565A (en) | 1948-02-20 |
BE467059A (en) | |
DE909635C (en) | 1954-04-22 |
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