FR66169E - Systèmes de signalisation électrique utilisant des triodes à cristal - Google Patents

Systèmes de signalisation électrique utilisant des triodes à cristal

Info

Publication number
FR66169E
FR66169E FR66169DA FR66169E FR 66169 E FR66169 E FR 66169E FR 66169D A FR66169D A FR 66169DA FR 66169 E FR66169 E FR 66169E
Authority
FR
France
Prior art keywords
signaling systems
electrical signaling
crystal triodes
triodes
crystal
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)
Inventor
Thomas Harold Walker
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 Standard Electric Corp
Original Assignee
International Standard Electric 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
Priority claimed from GB25326/52A external-priority patent/GB730892A/en
Priority claimed from GB32603/52A external-priority patent/GB730061A/en
Priority claimed from GB3361853A external-priority patent/GB763734A/en
Application filed by International Standard Electric Corp filed Critical International Standard Electric Corp
Priority claimed from GB10034/54A external-priority patent/GB740056A/en
Application granted granted Critical
Publication of FR66169E publication Critical patent/FR66169E/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
    • G06F7/50—Adding; Subtracting
    • G06F7/504—Adding; Subtracting in bit-serial fashion, i.e. having a single digit-handling circuit treating all denominations after each other
    • 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
    • G06F7/383—Methods or arrangements for performing computations using exclusively denominational number representation, e.g. using binary, ternary, decimal representation using magnetic or similar elements
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C11/00—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor
    • G11C11/21—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements
    • G11C11/34—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements using semiconductor devices
    • G11C11/40—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements using semiconductor devices using transistors
    • G11C11/41—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements using semiconductor devices using transistors forming static cells with positive feedback, i.e. cells not needing refreshing or charge regeneration, e.g. bistable multivibrator or Schmitt trigger
    • G11C11/411—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements using semiconductor devices using transistors forming static cells with positive feedback, i.e. cells not needing refreshing or charge regeneration, e.g. bistable multivibrator or Schmitt trigger using bipolar transistors only
    • G11C11/4113—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements using semiconductor devices using transistors forming static cells with positive feedback, i.e. cells not needing refreshing or charge regeneration, e.g. bistable multivibrator or Schmitt trigger using bipolar transistors only with at least one cell access to base or collector of at least one of said transistors, e.g. via access diodes, access transistors
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C19/00—Digital stores in which the information is moved stepwise, e.g. shift registers
    • G11C19/28—Digital stores in which the information is moved stepwise, e.g. shift registers using semiconductor elements
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B19/00—Generation of oscillations by non-regenerative frequency multiplication or division of a signal from a separate source
    • H03B19/06—Generation of oscillations by non-regenerative frequency multiplication or division of a signal from a separate source by means of discharge device or semiconductor device with more than two electrodes
    • H03B19/14—Generation of oscillations by non-regenerative frequency multiplication or division of a signal from a separate source by means of discharge device or semiconductor device with more than two electrodes by means of a semiconductor device
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
    • H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
    • H03K17/60—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being bipolar transistors
    • H03K17/64—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being bipolar transistors having inductive loads
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K19/00—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits
    • H03K19/02—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components
    • H03K19/08—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components using semiconductor devices
    • H03K19/082—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits using specified components using semiconductor devices using bipolar transistors
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K23/00—Pulse counters comprising counting chains; Frequency dividers comprising counting chains
    • H03K23/002—Pulse counters comprising counting chains; Frequency dividers comprising counting chains using semiconductor devices
    • 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
    • H03K3/26—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback
    • 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
    • H03K3/26—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback
    • H03K3/28—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback using means other than a transformer for feedback
    • 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
    • H03K3/26—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback
    • H03K3/28—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback using means other than a transformer for feedback
    • H03K3/281—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback using means other than a transformer for feedback using at least two transistors so coupled that the input of one is derived from the output of another, e.g. multivibrator
    • H03K3/286—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback using means other than a transformer for feedback using at least two transistors 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
    • H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
    • H03K3/26—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback
    • H03K3/30—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback using a transformer for feedback, e.g. blocking oscillator
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/20—Repeater circuits; Relay circuits
    • H04L25/24—Relay circuits using discharge tubes or semiconductor devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q1/00—Details of selecting apparatus or arrangements
    • H04Q1/18—Electrical details
    • H04Q1/30—Signalling arrangements; Manipulation of signalling currents
    • H04Q1/32—Signalling arrangements; Manipulation of signalling currents using trains of dc pulses
    • H04Q1/36—Pulse-correcting arrangements, e.g. for reducing effects due to interference
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2207/00—Indexing scheme relating to methods or arrangements for processing data by operating upon the order or content of the data handled
    • G06F2207/38—Indexing scheme relating to groups G06F7/38 - G06F7/575
    • G06F2207/48—Indexing scheme relating to groups G06F7/48 - G06F7/575
    • G06F2207/4802—Special implementations
    • G06F2207/4806—Cascode or current mode logic

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Power Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Computational Mathematics (AREA)
  • Mathematical Analysis (AREA)
  • Pure & Applied Mathematics (AREA)
  • Computing Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Mathematical Optimization (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mathematical Physics (AREA)
  • Signal Processing (AREA)
  • Electronic Switches (AREA)
  • Devices For Supply Of Signal Current (AREA)
  • Oscillators With Electromechanical Resonators (AREA)
  • Telephone Function (AREA)
  • Toys (AREA)
  • Manipulation Of Pulses (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Particle Accelerators (AREA)
FR66169D 1952-10-09 1953-12-18 Systèmes de signalisation électrique utilisant des triodes à cristal Expired FR66169E (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
GB25326/52A GB730892A (en) 1952-12-23 1952-10-09 Improvements in or relating to electrical bistable circuits
GB32603/52A GB730061A (en) 1952-10-09 1952-12-23 Improvements in or relating to electric trigger circuits
GB3271252A GB730907A (fr) 1952-10-09 1952-12-24
GB3361853A GB763734A (en) 1953-12-03 1953-12-03 Improvements in or relating to electrical circuits employing transistors
GB10034/54A GB740056A (en) 1952-10-09 1954-04-06 Improvements in or relating to electric trigger circuits employing crystal triodes

Publications (1)

Publication Number Publication Date
FR66169E true FR66169E (fr) 1956-05-17

Family

ID=32330108

Family Applications (7)

Application Number Title Priority Date Filing Date
FR1090165D Expired FR1090165A (fr) 1952-10-09 1953-10-07 Systèmes de signalisation électrique utilisant des triodes à cristal
FR64712D Expired FR64712E (fr) 1952-10-09 1953-10-09 Système de signalisation électrique utilisant des triodes à cristal
FR66065D Expired FR66065E (fr) 1952-10-09 1953-10-09
FR66169D Expired FR66169E (fr) 1952-10-09 1953-12-18 Systèmes de signalisation électrique utilisant des triodes à cristal
FR66170D Expired FR66170E (fr) 1952-10-09 1953-12-23 Systèmes de signalisation électrique utilisant des triodes à cristal
FR69860D Expired FR69860E (fr) 1952-10-09 1954-10-26 Système de signalisation électrique utilisant des triodes à cristal
FR71313D Expired FR71313E (fr) 1952-10-09 1954-12-02 Systèmes de signalisation électrique utilisant des triodes à cristal

Family Applications Before (3)

Application Number Title Priority Date Filing Date
FR1090165D Expired FR1090165A (fr) 1952-10-09 1953-10-07 Systèmes de signalisation électrique utilisant des triodes à cristal
FR64712D Expired FR64712E (fr) 1952-10-09 1953-10-09 Système de signalisation électrique utilisant des triodes à cristal
FR66065D Expired FR66065E (fr) 1952-10-09 1953-10-09

Family Applications After (3)

Application Number Title Priority Date Filing Date
FR66170D Expired FR66170E (fr) 1952-10-09 1953-12-23 Systèmes de signalisation électrique utilisant des triodes à cristal
FR69860D Expired FR69860E (fr) 1952-10-09 1954-10-26 Système de signalisation électrique utilisant des triodes à cristal
FR71313D Expired FR71313E (fr) 1952-10-09 1954-12-02 Systèmes de signalisation électrique utilisant des triodes à cristal

Country Status (7)

Country Link
US (5) US2906888A (fr)
BE (6) BE523377A (fr)
CH (4) CH328585A (fr)
DE (4) DE1023081B (fr)
FR (7) FR1090165A (fr)
GB (3) GB733638A (fr)
NL (2) NL192868A (fr)

Families Citing this family (60)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE532053A (fr) * 1953-09-24
NL203254A (fr) * 1954-12-31
US2967951A (en) * 1955-01-17 1961-01-10 Philco Corp Direct-coupled transistor circuit
NL203732A (fr) * 1955-01-18
US2896170A (en) * 1955-01-20 1959-07-21 Int Standard Electric Corp Oscillator circuit for transistors
US2888560A (en) * 1955-03-07 1959-05-26 Sperry Rand Corp Modulator binary counter circuit
US2872596A (en) * 1955-03-31 1959-02-03 Hughes Aircraft Co Transistor voltage comparator
NL202652A (fr) * 1955-12-07
US2956176A (en) * 1956-01-25 1960-10-11 Int Standard Electric Corp Pulse producing device
US2908829A (en) * 1956-03-08 1959-10-13 Barber Colman Co Control system with stepped output transistor amplifier
DE1035274B (de) * 1956-03-17 1958-07-31 Pintsch Electro Gmbh Relaisschaltung zur UEberwachung einer Signalspannung
US2946897A (en) * 1956-03-29 1960-07-26 Bell Telephone Labor Inc Direct coupled transistor logic circuits
US2906893A (en) * 1956-07-06 1959-09-29 Bell Telephone Labor Inc Transistor blocking oscillator
US2952772A (en) * 1956-08-20 1960-09-13 Honeywell Regulator Co Electrical pulse shaping and amplifying circuit
US2885573A (en) * 1956-09-04 1959-05-05 Ibm Transistor delay circuit
US3038658A (en) * 1956-09-11 1962-06-12 Robotomics Entpr Inc Electronic counter
US2920216A (en) * 1956-09-18 1960-01-05 Philco Corp Transistor multivibrator
US2967953A (en) * 1956-09-24 1961-01-10 Bendix Corp Inductance controlled multivibrator
DE1047839B (de) * 1956-10-09 1958-12-31 Philips Nv Bistabile Kippschaltung mit zwei Transistoren des stromverstaerkenden Typs
US2947879A (en) * 1956-10-30 1960-08-02 Ibm Transistor power inverter circuit
US2920215A (en) * 1956-10-31 1960-01-05 Rca Corp Switching circuit
US2945964A (en) * 1956-10-31 1960-07-19 Hughes Aircraft Co Pulsed output transistor flip-flop
NL106421C (fr) * 1956-11-27
NL222924A (fr) * 1956-12-03
US3132303A (en) * 1956-12-11 1964-05-05 Telefunken Gmbh Bistable trigger circuit with feedback amplifier
CA844122A (en) * 1957-02-14 1970-06-09 Honeywell Inc. Excitation control for electric generators
US2916670A (en) * 1957-03-15 1959-12-08 Bill Jack Scient Instr Co Electronic flasher system
US3067336A (en) * 1957-05-03 1962-12-04 Honeywell Regulator Co Bistable electronic switching circuitry for manipulating digital data
US3067410A (en) * 1957-06-05 1962-12-04 Alsacienne De Reglage Thermiqu Automatically controlling electric regulator system of temperature, pressure or moisture
US2957137A (en) * 1957-06-24 1960-10-18 Jr Aaron Z Robinson Polarity coincidence correlator
US2982276A (en) * 1957-08-28 1961-05-02 Bosch Gmbh Robert Pulse generating system for electronic fuel injection control devices and the like
US2988651A (en) * 1957-08-30 1961-06-13 Richard K Richards Regenerative pulse amplifier
US3001087A (en) * 1957-10-04 1961-09-19 Siemens Ag Impulse timing chains
DE1145523B (de) * 1957-12-07 1963-03-14 Westinghouse Electric Corp Signalanlage
US2999172A (en) * 1957-12-20 1961-09-05 Bell Telephone Labor Inc Transistor trigger circuit
US2996685A (en) * 1958-01-31 1961-08-15 Baskin R Lawrence Electronic tone signal generators
US3045127A (en) * 1958-03-28 1962-07-17 Honeywell Regulator Co Electrical counter circuitry
US3066231A (en) * 1958-07-30 1962-11-27 Ibm Flip-flop circuit having pulse-forming networks in the cross-coupling paths
US2977485A (en) * 1958-11-28 1961-03-28 Digital Equipment Corp Diode-transformer gating circuit
US3080486A (en) * 1958-12-22 1963-03-05 Westinghouse Electric Corp Bistable amplifier circuit
USRE29475E (en) * 1959-01-19 1977-11-15 Honeywell Inc. Battery charging circuit responsive to generator output voltage and current
US3149238A (en) * 1959-02-27 1964-09-15 Ericsson Telefon Ab L M Ring-counter circuit system
US3172095A (en) * 1959-03-27 1965-03-02 Beckman Instruments Inc Transistor controlled digital count indicator
US3193706A (en) * 1959-12-02 1965-07-06 Philco Corp Signal responsive load energization system
GB929796A (fr) * 1960-02-10
US3106647A (en) * 1960-02-19 1963-10-08 Int Resistance Co Bistable semiconductor circuit responsive to sensing device
US3162790A (en) * 1960-03-10 1964-12-22 Wakamatsu Hisato Transistor relay circuit
US3120618A (en) * 1961-02-06 1964-02-04 Gen Precision Inc Error signal storage system
US3238310A (en) * 1961-02-13 1966-03-01 Rca Corp Bidirectional amplifiers
US3188529A (en) * 1961-07-27 1965-06-08 Cutler Hammer Inc System for controlling electroresponsive means
US3201773A (en) * 1961-08-30 1965-08-17 Leeds & Northrup Co Visual indicator for bistate units
US3233116A (en) * 1961-11-28 1966-02-01 Gen Electric Control rectifiers having timing means energized in response to load effecting commutation
US3185911A (en) * 1961-12-07 1965-05-25 Omnitronics Inc Control circuit for tape drive mechanism
US3205372A (en) * 1962-08-02 1965-09-07 Sperry Rand Corp Schmitt trigger circuit characterized by noise insensitivity
US3214644A (en) * 1962-09-24 1965-10-26 Bunker Ramo Trigger circuit
US3325645A (en) * 1964-08-11 1967-06-13 Picker X Ray Corp Waite Mfg X-ray tube system with voltage and current control means
DE1562287B1 (de) * 1966-06-07 1970-04-02 Patelhold Patentverwertung Schaltungsanordnung zum selektiven Durchschalten einer mit einem Informationssignal modulierten Traeger-Wechselspannung auf einen von mehreren Ausgangskanaelen
US3593034A (en) * 1968-12-24 1971-07-13 Matsushita Electric Ind Co Ltd Electrical ring counter circuit
US4414602A (en) * 1981-12-18 1983-11-08 Minnesota Mining And Manufacturing Co. Current director and interface circuit for a transformer relay
JP6355211B2 (ja) 2013-07-01 2018-07-11 住友精密工業株式会社 蒸発装置及びこれを使用した燃料電池システム

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2538515A (en) * 1947-06-25 1951-01-16 Rca Corp Electronic interval timer
NL75792C (fr) * 1948-05-19
NL91957C (fr) * 1949-03-31
US2533001A (en) * 1949-04-30 1950-12-05 Rca Corp Flip-flop counter circuit
US2605306A (en) * 1949-10-15 1952-07-29 Rca Corp Semiconductor multivibrator circuit
US2620400A (en) * 1949-10-17 1952-12-02 Snijders Antonie Arrangement for comparing voltages
US2531076A (en) * 1949-10-22 1950-11-21 Rca Corp Bistable semiconductor multivibrator circuit
US2569345A (en) * 1950-03-28 1951-09-25 Gen Electric Transistor multivibrator circuit
US2614141A (en) * 1950-05-26 1952-10-14 Bell Telephone Labor Inc Counting circuit
US2627039A (en) * 1950-05-29 1953-01-27 Bell Telephone Labor Inc Gating circuits
US2620448A (en) * 1950-09-12 1952-12-02 Bell Telephone Labor Inc Transistor trigger circuits
US2594336A (en) * 1950-10-17 1952-04-29 Bell Telephone Labor Inc Electrical counter circuit
USB222686I5 (fr) * 1950-11-28
US2594449A (en) * 1950-12-30 1952-04-29 Bell Telephone Labor Inc Transistor switching device
US2622211A (en) * 1951-04-28 1952-12-16 Bell Telephone Labor Inc Stabilized transistor trigger circuit
USB164000I5 (fr) * 1951-09-15
NL78910C (fr) * 1951-10-30
US2676271A (en) * 1952-01-25 1954-04-20 Bell Telephone Labor Inc Transistor gate
US2644897A (en) * 1952-08-09 1953-07-07 Rca Corp Transistor ring counter
BE522796A (fr) * 1952-09-17
BE524024A (fr) * 1952-11-07
US2714705A (en) * 1953-03-05 1955-08-02 Rca Corp Electronic phase shifting system

Also Published As

Publication number Publication date
CH323960A (fr) 1957-08-31
US2860259A (en) 1958-11-11
DE1007809B (de) 1957-05-09
NL191850A (fr)
CH331346A (fr) 1958-07-15
BE523378A (fr) 1956-01-09
FR64712E (fr) 1955-12-01
DE1068486B (de) 1959-11-05
NL192868A (fr)
FR66170E (fr) 1956-05-17
GB730907A (fr)
DE1018460B (de) 1957-10-31
CH328585A (fr) 1958-03-15
BE525314A (fr) 1956-05-05
BE550798A (fr) 1959-12-18
BE523376A (fr) 1956-01-09
US2906888A (en) 1959-09-29
CH339948A (de) 1959-07-31
US2832899A (en) 1958-04-29
GB794656A (en) 1958-05-07
FR69860E (fr) 1959-01-09
FR71313E (fr) 1959-12-22
US2806153A (en) 1957-09-10
FR66065E (fr) 1956-05-03
DE1023081B (de) 1958-01-23
US2764688A (en) 1956-09-25
BE523377A (fr) 1956-01-06
GB733638A (en) 1955-07-13
FR1090165A (fr) 1955-03-28
BE533839A (fr) 1958-06-08

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