FR941730A - Perfectionnements aux machines comptables - Google Patents

Perfectionnements aux machines comptables

Info

Publication number
FR941730A
FR941730A FR941730DA FR941730A FR 941730 A FR941730 A FR 941730A FR 941730D A FR941730D A FR 941730DA FR 941730 A FR941730 A FR 941730A
Authority
FR
France
Prior art keywords
accounting machines
accounting
machines
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
Application number
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by International Business Machines Corp filed Critical International Business Machines Corp
Application granted granted Critical
Publication of FR941730A publication Critical patent/FR941730A/fr
Expired legal-status Critical Current

Links

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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
    • H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
    • H03K3/04—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of vacuum tubes only, with positive feedback
    • H03K3/05—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of vacuum tubes only, with positive feedback using means other than a transformer for feedback
    • H03K3/06—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of vacuum tubes only, with positive feedback using means other than a transformer for feedback using at least two tubes so coupled that the input of one is derived from the output of another, e.g. multivibrator
    • H03K3/12—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of vacuum tubes only, with positive feedback using means other than a transformer for feedback using at least two tubes so coupled that the input of one is derived from the output of another, e.g. multivibrator bistable
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
    • H03K3/78—Generating a single train of pulses having a predetermined pattern, e.g. a predetermined number
FR941730D 1941-05-23 1946-10-17 Perfectionnements aux machines comptables Expired FR941730A (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US394881A US2580741A (en) 1941-05-23 1941-05-23 Accounting apparatus
US757766A US2514036A (en) 1941-05-23 1947-06-28 Selective number electronic pulse producer

Publications (1)

Publication Number Publication Date
FR941730A true FR941730A (fr) 1949-01-19

Family

ID=27014910

Family Applications (1)

Application Number Title Priority Date Filing Date
FR941730D Expired FR941730A (fr) 1941-05-23 1946-10-17 Perfectionnements aux machines comptables

Country Status (6)

Country Link
US (2) US2580741A (fr)
BE (1) BE469619A (fr)
DE (1) DE883813C (fr)
FR (1) FR941730A (fr)
GB (1) GB595553A (fr)
NL (1) NL73696C (fr)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2656106A (en) * 1942-08-10 1953-10-20 Howard P Stabler Shaft position indicator having reversible counting means
US2745599A (en) * 1949-03-24 1956-05-15 Ibm Electronic multiplier
US2754059A (en) * 1951-11-27 1956-07-10 Jr Dwight D Wilcox Electronic differential digital computer
US2662112A (en) * 1952-04-16 1953-12-08 Nathaniel G A Dorfman Electronic code-typewritter system
NL180236B (nl) * 1952-07-30 Metaux Speciaux Sa Werkwijze voor het bereiden van zeer zuiver natrium.
US2833468A (en) * 1952-10-01 1958-05-06 Ibm Indicating device
US2853235A (en) * 1952-11-20 1958-09-23 Applied Science Corp Of Prince Binary digit multiplier circuit
US2750113A (en) * 1953-04-06 1956-06-12 Ibm Read-in circuit
US2925586A (en) * 1953-04-29 1960-02-16 Levy Maurice Moise Method of, and apparatus for, electronically interpreting a pattern code
BE529295A (fr) * 1953-06-02
BE529296A (fr) * 1953-06-02
US2884189A (en) * 1953-08-31 1959-04-28 Ibm Read-in circuit
NL198494A (fr) * 1954-07-01
US2888557A (en) * 1954-09-17 1959-05-26 Bell Telephone Labor Inc Frequency divider circuits
US2902686A (en) * 1954-11-29 1959-09-01 Underwood Corp Signal apparatus
US2947478A (en) * 1955-05-16 1960-08-02 Ibm Electronic calculator
US2961160A (en) * 1956-05-28 1960-11-22 Toledo Scale Corp Electronic multiplier
DE1097724B (de) * 1956-03-05 1961-01-19 North American Aviation Inc Steuerschaltung fuer die Signaluebertragung in elektronischen Rechenmaschinen
US3062440A (en) * 1957-12-18 1962-11-06 Ibm Multistable magnetic core accumulator
DE1218518B (de) * 1961-12-15 1966-06-08 Siemens Ag Verfahren zum Speichern vorzeichenbehafteter binaerer Informationen und Vorrichtung zur Durchfuehrung des Verfahrens
US3500068A (en) * 1967-01-03 1970-03-10 Burroughs Corp Pulse generating and registering circuit having means for controlling the timing of registering a count and generating a count
US4964568A (en) * 1989-01-17 1990-10-23 The Perkin-Elmer Corporation Shrouded thermal spray gun and method

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US945912A (en) * 1907-02-28 1910-01-11 Ncr Co Electric cash-register.
US2031298A (en) * 1929-11-13 1936-02-18 Automatic Electric Co Ltd Electric totalizator
US2095730A (en) * 1929-12-11 1937-10-12 Associated Electric Lab Inc Stock quotation system
US2103297A (en) * 1930-04-19 1937-12-28 Associated Electric Lab Inc Stock-quotation system
GB355705A (en) * 1930-05-23 1931-08-24 Alec Harley Reeves Improvements in or relating to electrical measuring systems and apparatus therefor
US2093529A (en) * 1932-10-11 1937-09-21 Ibm Tabulating machine
US2098227A (en) * 1934-02-20 1937-11-09 Csf Telegraphy system with position indicators
NL60415C (fr) * 1937-04-15
US2250847A (en) * 1938-05-14 1941-07-29 Ibm Electrical accumulator
US2272430A (en) * 1938-07-16 1942-02-10 Ibm Accounting machine
US2210574A (en) * 1938-09-16 1940-08-06 Ibm Signaling system
NL87334C (fr) * 1938-10-03
US2308778A (en) * 1939-09-11 1943-01-19 Jr Leon M Prince Automatic telephone system
US2252457A (en) * 1940-07-13 1941-08-12 Gen Electric Relay apparatus
US2403852A (en) * 1940-11-07 1946-07-09 Ncr Co Electronic device and control means therefor
US2348016A (en) * 1941-11-13 1944-05-02 Gen Electric Countercircuit
US2403873A (en) * 1942-08-06 1946-07-09 Ncr Co Impulse emitter
US2398771A (en) * 1943-05-24 1946-04-23 Ncr Co Electronic device
US2416188A (en) * 1943-07-28 1947-02-18 Westinghouse Electric Corp High-efficiency multivibrator circuits

Also Published As

Publication number Publication date
US2580741A (en) 1952-01-01
BE469619A (fr)
GB595553A (en) 1947-12-09
DE883813C (de) 1953-07-20
US2514036A (en) 1950-07-04
NL73696C (fr)

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