CH672391GA3 - - Google Patents
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- Publication number
- CH672391GA3 CH672391GA3 CH192885A CH192885A CH672391GA3 CH 672391G A3 CH672391G A3 CH 672391GA3 CH 192885 A CH192885 A CH 192885A CH 192885 A CH192885 A CH 192885A CH 672391G A3 CH672391G A3 CH 672391GA3
- Authority
- CH
- Switzerland
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- H01L29/40—Electrodes ; Multistep manufacturing processes therefor
- H01L29/43—Electrodes ; Multistep manufacturing processes therefor characterised by the materials of which they are formed
- H01L29/49—Metal-insulator-semiconductor electrodes, e.g. gates of MOSFET
- H01L29/4983—Metal-insulator-semiconductor electrodes, e.g. gates of MOSFET with a lateral structure, e.g. a Polysilicon gate with a lateral doping variation or with a lateral composition variation or characterised by the sidewalls being composed of conductive, resistive or dielectric material
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- G05F3/00—Non-retroactive systems for regulating electric variables by using an uncontrolled element, or an uncontrolled combination of elements, such element or such combination having self-regulating properties
- G05F3/02—Regulating voltage or current
- G05F3/08—Regulating voltage or current wherein the variable is dc
- G05F3/10—Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics
- G05F3/16—Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics being semiconductor devices
- G05F3/20—Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics being semiconductor devices using diode- transistor combinations
- G05F3/24—Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics being semiconductor devices using diode- transistor combinations wherein the transistors are of the field-effect type only
- G05F3/242—Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics being semiconductor devices using diode- transistor combinations wherein the transistors are of the field-effect type only with compensation for device parameters, e.g. channel width modulation, threshold voltage, processing, or external variations, e.g. temperature, loading, supply voltage
- G05F3/245—Regulating voltage or current wherein the variable is dc using uncontrolled devices with non-linear characteristics being semiconductor devices using diode- transistor combinations wherein the transistors are of the field-effect type only with compensation for device parameters, e.g. channel width modulation, threshold voltage, processing, or external variations, e.g. temperature, loading, supply voltage producing a voltage or current as a predetermined function of the temperature
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- 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
- 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
- G11C11/413—Auxiliary circuits, e.g. for addressing, decoding, driving, writing, sensing, timing or power reduction
- G11C11/417—Auxiliary circuits, e.g. for addressing, decoding, driving, writing, sensing, timing or power reduction for memory cells of the field-effect type
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C5/00—Details of stores covered by group G11C11/00
- G11C5/14—Power supply arrangements, e.g. power down, chip selection or deselection, layout of wirings or power grids, or multiple supply levels
- G11C5/143—Detection of memory cassette insertion or removal; Continuity checks of supply or ground lines; Detection of supply variations, interruptions or levels ; Switching between alternative supplies
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C5/00—Details of stores covered by group G11C11/00
- G11C5/14—Power supply arrangements, e.g. power down, chip selection or deselection, layout of wirings or power grids, or multiple supply levels
- G11C5/147—Voltage reference generators, voltage or current regulators; Internally lowered supply levels; Compensation for voltage drops
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/02—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers
- H01L27/04—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being a semiconductor body
- H01L27/08—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being a semiconductor body including only semiconductor components of a single kind
- H01L27/085—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being a semiconductor body including only semiconductor components of a single kind including field-effect components only
- H01L27/088—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being a semiconductor body including only semiconductor components of a single kind including field-effect components only the components being field-effect transistors with insulated gate
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/45—Differential amplifiers
- H03F3/45071—Differential amplifiers with semiconductor devices only
- H03F3/45076—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier
- H03F3/45179—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier using MOSFET transistors as the active amplifying circuit
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/45—Differential amplifiers
- H03F3/45071—Differential amplifiers with semiconductor devices only
- H03F3/45479—Differential amplifiers with semiconductor devices only characterised by the way of common mode signal rejection
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/45—Differential amplifiers
- H03F3/45071—Differential amplifiers with semiconductor devices only
- H03F3/45479—Differential amplifiers with semiconductor devices only characterised by the way of common mode signal rejection
- H03F3/45632—Differential amplifiers with semiconductor devices only characterised by the way of common mode signal rejection in differential amplifiers with FET transistors as the active amplifying circuit
- H03F3/45744—Differential amplifiers with semiconductor devices only characterised by the way of common mode signal rejection in differential amplifiers with FET transistors as the active amplifying circuit by offset reduction
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/45—Differential amplifiers
- H03F3/45071—Differential amplifiers with semiconductor devices only
- H03F3/45479—Differential amplifiers with semiconductor devices only characterised by the way of common mode signal rejection
- H03F3/45632—Differential amplifiers with semiconductor devices only characterised by the way of common mode signal rejection in differential amplifiers with FET transistors as the active amplifying circuit
- H03F3/45744—Differential amplifiers with semiconductor devices only characterised by the way of common mode signal rejection in differential amplifiers with FET transistors as the active amplifying circuit by offset reduction
- H03F3/45748—Differential amplifiers with semiconductor devices only characterised by the way of common mode signal rejection in differential amplifiers with FET transistors as the active amplifying circuit by offset reduction by using a feedback circuit
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- 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
- H03K19/003—Modifications for increasing the reliability for protection
- H03K19/00369—Modifications for compensating variations of temperature, supply voltage or other physical parameters
- H03K19/00384—Modifications for compensating variations of temperature, supply voltage or other physical parameters in field effect transistor circuits
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- 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
- H03K19/0175—Coupling arrangements; Interface arrangements
- H03K19/0185—Coupling arrangements; Interface arrangements using field effect transistors only
- H03K19/018507—Interface arrangements
-
- 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
- H03K19/0175—Coupling arrangements; Interface arrangements
- H03K19/0185—Coupling arrangements; Interface arrangements using field effect transistors only
- H03K19/018507—Interface arrangements
- H03K19/018514—Interface arrangements with at least one differential stage
-
- 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
- H03K3/023—Generators characterised by the type of circuit or by the means used for producing pulses by the use of differential amplifiers or comparators, with internal or external positive feedback
- H03K3/0231—Astable circuits
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- 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
- H03K3/023—Generators characterised by the type of circuit or by the means used for producing pulses by the use of differential amplifiers or comparators, with internal or external positive feedback
- H03K3/0233—Bistable circuits
- H03K3/02337—Bistables with hysteresis, e.g. Schmitt trigger
-
- 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
- H03K3/353—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of field-effect transistors with internal or external positive feedback
- H03K3/356—Bistable circuits
- H03K3/3565—Bistables with hysteresis, e.g. Schmitt trigger
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
- H03K5/22—Circuits having more than one input and one output for comparing pulses or pulse trains with each other according to input signal characteristics, e.g. slope, integral
- H03K5/24—Circuits having more than one input and one output for comparing pulses or pulse trains with each other according to input signal characteristics, e.g. slope, integral the characteristic being amplitude
- H03K5/2472—Circuits having more than one input and one output for comparing pulses or pulse trains with each other according to input signal characteristics, e.g. slope, integral the characteristic being amplitude using field effect transistors
- H03K5/2481—Circuits having more than one input and one output for comparing pulses or pulse trains with each other according to input signal characteristics, e.g. slope, integral the characteristic being amplitude using field effect transistors with at least one differential stage
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F2203/00—Indexing scheme relating to amplifiers with only discharge tubes or only semiconductor devices as amplifying elements covered by H03F3/00
- H03F2203/45—Indexing scheme relating to differential amplifiers
- H03F2203/45394—Indexing scheme relating to differential amplifiers the AAC of the dif amp comprising FETs whose sources are not coupled, i.e. the AAC being a pseudo-differential amplifier
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Computer Hardware Design (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Computing Systems (AREA)
- General Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Nonlinear Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Electromagnetism (AREA)
- Automation & Control Theory (AREA)
- Semiconductor Integrated Circuits (AREA)
- Semiconductor Memories (AREA)
- Control Of Electrical Variables (AREA)
- Metal-Oxide And Bipolar Metal-Oxide Semiconductor Integrated Circuits (AREA)
- Measurement Of Current Or Voltage (AREA)
Applications Claiming Priority (11)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2544478A JPS54119653A (en) | 1978-03-08 | 1978-03-08 | Constant voltage generating circuit |
JP3554578A JPS54129348A (en) | 1978-03-29 | 1978-03-29 | Constant voltage output circuit |
JP3924278A JPS54132753A (en) | 1978-04-05 | 1978-04-05 | Referential voltage generator and its application |
JP11172078A JPS5539608A (en) | 1978-09-13 | 1978-09-13 | Reference voltage generation device |
JP11172378A JPS5538677A (en) | 1978-09-13 | 1978-09-13 | Semiconductor memory with function of detecting power failure |
JP11172478A JPS5539412A (en) | 1978-09-13 | 1978-09-13 | Insulating gate field effect transistor integrated circuit and its manufacture |
JP11172578A JPS5539413A (en) | 1978-09-13 | 1978-09-13 | Schmitt trigger circuit |
JP11171978A JPS5539607A (en) | 1978-09-13 | 1978-09-13 | Reference voltage generation device |
JP11172278A JPS5539411A (en) | 1978-09-13 | 1978-09-13 | Reference voltage generator |
JP11171878A JPS5539606A (en) | 1978-09-13 | 1978-09-13 | Reference voltage generation device |
JP11171778A JPS5539605A (en) | 1978-09-13 | 1978-09-13 | Reference voltage generation device |
Publications (2)
Publication Number | Publication Date |
---|---|
CH672391GA3 true CH672391GA3 (el) | 1989-11-30 |
CH672391B5 CH672391B5 (de) | 1990-05-31 |
Family
ID=27581900
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH1621/79A CH657712A5 (de) | 1978-03-08 | 1979-02-19 | Referenzspannungserzeuger. |
CH1928/85A CH672391B5 (de) | 1978-03-08 | 1985-02-19 | Referenzspannungserzeuger. |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH1621/79A CH657712A5 (de) | 1978-03-08 | 1979-02-19 | Referenzspannungserzeuger. |
Country Status (10)
Country | Link |
---|---|
CA (1) | CA1149081A (el) |
CH (2) | CH657712A5 (el) |
DE (2) | DE2906527A1 (el) |
FR (1) | FR2447036B1 (el) |
GB (1) | GB2016801B (el) |
HK (4) | HK8084A (el) |
IT (1) | IT1111987B (el) |
MY (4) | MY8400375A (el) |
NL (1) | NL7901335A (el) |
SG (1) | SG41784G (el) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2494519A1 (fr) * | 1980-11-14 | 1982-05-21 | Efcis | Generateur de courant integre en technologie cmos |
US4347476A (en) * | 1980-12-04 | 1982-08-31 | Rockwell International Corporation | Voltage-temperature insensitive on-chip reference voltage source compatible with VLSI manufacturing techniques |
JPS58221418A (ja) * | 1982-06-18 | 1983-12-23 | Hitachi Ltd | 基準電圧発生装置 |
JPS5940393A (ja) * | 1982-08-31 | 1984-03-06 | Nec Corp | メモリ回路 |
IT1179823B (it) * | 1984-11-22 | 1987-09-16 | Cselt Centro Studi Lab Telecom | Generatore di tensione differenziale di rifferimento per circuiti integrati ad alimentazione singola in tecnologia nmos |
FR2628547B1 (fr) * | 1988-03-09 | 1990-12-28 | Sgs Thomson Microelectronics | Generateur stabilise de fourniture de tension de seuil de transistor mos |
GB2298724B (en) * | 1991-11-15 | 1996-12-11 | Nec Corp | Constant voltage circuit |
DE69213213T2 (de) * | 1992-04-16 | 1997-01-23 | Sgs Thomson Microelectronics | Genauer MOS-Schwellenspannungsgenerator |
US5468666A (en) * | 1993-04-29 | 1995-11-21 | Texas Instruments Incorporated | Using a change in doping of poly gate to permit placing both high voltage and low voltage transistors on the same chip |
EP1102319B1 (en) * | 1999-11-19 | 2010-05-26 | STMicroelectronics Srl | Process for manufacturing electronic devices comprising high-voltage MOS and EEPROM transistors |
US8385147B2 (en) * | 2010-03-30 | 2013-02-26 | Silicon Storage Technology, Inc. | Systems and methods of non-volatile memory sensing including selective/differential threshold voltage features |
CN110707151B (zh) * | 2019-11-13 | 2023-04-07 | 江苏丽隽功率半导体有限公司 | 一种静电感应晶闸管及其制作方法 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3975648A (en) * | 1975-06-16 | 1976-08-17 | Hewlett-Packard Company | Flat-band voltage reference |
US4100437A (en) * | 1976-07-29 | 1978-07-11 | Intel Corporation | MOS reference voltage circuit |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2103427A1 (el) * | 1970-08-21 | 1972-04-14 | Motorola Inc | |
US3673471A (en) * | 1970-10-08 | 1972-06-27 | Fairchild Camera Instr Co | Doped semiconductor electrodes for mos type devices |
DE2050320A1 (de) * | 1970-10-13 | 1972-04-20 | Siemens Ag | Halbleiteranordnung |
JPS4952980A (el) * | 1972-09-22 | 1974-05-23 | ||
US3995177A (en) * | 1973-01-02 | 1976-11-30 | Fairchild Camera And Instrument Corporation | Electronic watch |
-
1979
- 1979-02-19 CH CH1621/79A patent/CH657712A5/de not_active IP Right Cessation
- 1979-02-20 DE DE19792906527 patent/DE2906527A1/de not_active Ceased
- 1979-02-20 IT IT20368/79A patent/IT1111987B/it active
- 1979-02-20 FR FR7904226A patent/FR2447036B1/fr not_active Expired
- 1979-02-20 DE DE2954543A patent/DE2954543C2/de not_active Expired - Lifetime
- 1979-02-20 CA CA000321955A patent/CA1149081A/en not_active Expired
- 1979-02-20 NL NL7901335A patent/NL7901335A/xx not_active Application Discontinuation
- 1979-03-06 GB GB7907817A patent/GB2016801B/en not_active Expired
-
1984
- 1984-01-24 HK HK80/84A patent/HK8084A/xx not_active IP Right Cessation
- 1984-06-04 SG SG417/84A patent/SG41784G/en unknown
- 1984-12-31 MY MY1984375A patent/MY8400375A/xx unknown
-
1985
- 1985-02-19 CH CH1928/85A patent/CH672391B5/de unknown
- 1985-05-09 HK HK351/85A patent/HK35185A/xx unknown
- 1985-05-09 HK HK364/85A patent/HK36485A/xx not_active IP Right Cessation
- 1985-05-09 HK HK363/85A patent/HK36385A/xx not_active IP Right Cessation
- 1985-12-30 MY MY658/85A patent/MY8500658A/xx unknown
- 1985-12-30 MY MY671/85A patent/MY8500671A/xx unknown
- 1985-12-30 MY MY672/85A patent/MY8500672A/xx unknown
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3975648A (en) * | 1975-06-16 | 1976-08-17 | Hewlett-Packard Company | Flat-band voltage reference |
US4068134A (en) * | 1975-06-16 | 1978-01-10 | Hewlett-Packard Company | Barrier height voltage reference |
US4100437A (en) * | 1976-07-29 | 1978-07-11 | Intel Corporation | MOS reference voltage circuit |
Non-Patent Citations (1)
Title |
---|
IBM TECHNICAL DISCLOSURE BULLETIN, Band 19, Nr. 2, Juli 1976, Seiten 500-501, New York, US; W.M. CHU: "On-chip constant current compensator" * |
Also Published As
Publication number | Publication date |
---|---|
HK8084A (en) | 1984-02-01 |
GB2016801A (en) | 1979-09-26 |
MY8500658A (en) | 1985-12-31 |
CH672391B5 (de) | 1990-05-31 |
NL7901335A (nl) | 1979-09-11 |
GB2016801B (en) | 1983-02-02 |
MY8400375A (en) | 1984-12-31 |
FR2447036A1 (fr) | 1980-08-14 |
IT1111987B (it) | 1986-01-13 |
FR2447036B1 (fr) | 1986-10-17 |
DE2954543C2 (el) | 1990-04-12 |
CH657712A5 (de) | 1986-09-15 |
IT7920368A0 (it) | 1979-02-20 |
CA1149081A (en) | 1983-06-28 |
HK36485A (en) | 1985-05-17 |
SG41784G (en) | 1985-03-08 |
DE2906527A1 (de) | 1979-10-18 |
HK35185A (en) | 1985-05-17 |
MY8500671A (en) | 1985-12-31 |
MY8500672A (en) | 1985-12-31 |
HK36385A (en) | 1985-05-17 |