NO132088B - - Google Patents
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- Publication number
- NO132088B NO132088B NO2707/71A NO270771A NO132088B NO 132088 B NO132088 B NO 132088B NO 2707/71 A NO2707/71 A NO 2707/71A NO 270771 A NO270771 A NO 270771A NO 132088 B NO132088 B NO 132088B
- Authority
- NO
- Norway
- Prior art keywords
- detector
- air
- molten metal
- metal
- wheel
- Prior art date
Links
- 229910052751 metal Inorganic materials 0.000 claims description 25
- 239000002184 metal Substances 0.000 claims description 25
- 238000005266 casting Methods 0.000 claims description 18
- 230000001105 regulatory effect Effects 0.000 claims description 6
- 238000009749 continuous casting Methods 0.000 claims description 5
- 230000001276 controlling effect Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005058 metal casting Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/52—Hydrogen sulfide
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B17/00—Sulfur; Compounds thereof
- C01B17/02—Preparation of sulfur; Purification
- C01B17/04—Preparation of sulfur; Purification from gaseous sulfur compounds including gaseous sulfides
- C01B17/0404—Preparation of sulfur; Purification from gaseous sulfur compounds including gaseous sulfides by processes comprising a dry catalytic conversion of hydrogen sulfide-containing gases, e.g. the Claus process
- C01B17/0456—Preparation of sulfur; Purification from gaseous sulfur compounds including gaseous sulfides by processes comprising a dry catalytic conversion of hydrogen sulfide-containing gases, e.g. the Claus process the hydrogen sulfide-containing gas being a Claus process tail gas
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B17/00—Sulfur; Compounds thereof
- C01B17/16—Hydrogen sulfides
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
- C10K1/00—Purifying combustible gases containing carbon monoxide
- C10K1/08—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors
- C10K1/10—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors with aqueous liquids
- C10K1/12—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors with aqueous liquids alkaline-reacting including the revival of the used wash liquors
- C10K1/14—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors with aqueous liquids alkaline-reacting including the revival of the used wash liquors organic
- C10K1/143—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors with aqueous liquids alkaline-reacting including the revival of the used wash liquors organic containing amino groups
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Combustion & Propulsion (AREA)
- Analytical Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Treating Waste Gases (AREA)
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
Description
Apparat og fremgangsmåte for nivåregulering for støpehjulsformer. Apparatus and method for level regulation for casting wheel moulds.
Oppfinnelsen vedrører kontinuerlig The invention relates continuously
støpning av metallstenger eller -strimler casting of metal bars or strips
ved hjelp av støpen jul, hvor smeltet metall using the cast Christmas, where molten metal
helles ned i en form, tilveiebragt ved at is poured into a mold, provided by that
et roterende hjul har en omkretsrille med a rotating wheel has a circumferential groove with
hensiktsmessig profil lukket av et metall-band lagt rundt en del av hjulets omkrets, appropriate profile closed by a metal band placed around part of the wheel's circumference,
og som beveger seg stort sett synkront med and which moves largely synchronously with
hjulet. Ved denne fremgangsmåte treffer the wheel. By this procedure hits
vanligvis båndet sammen med hjulets omkrets på et sted nær hjulets topp, slik at usually the band together with the circumference of the wheel at a place near the top of the wheel, so that
der tilveiebringes et inngangssted hvor there is provided an entry point where
metallet helles i formen ved hjelp av en the metal is poured into the mold using a
renne. Det er ønskelig at nivået av dammen av smeltet metall ved inngangsstedet chute. It is desirable that the level of the pool of molten metal at the entry point
holdes mest mulig konstant. Den nøyaktige kept as constant as possible. The exact one
regulering av dette nivå er av største vik-tighet for fremstilling av en støpt stang regulation of this level is of utmost importance for the production of a cast rod
eller en strimmel som har tilfredsstillende or a strip that has satisfactory
overflate- og kantegenskaper. surface and edge properties.
Det er en hensikt med oppfinnelsen å It is a purpose of the invention to
tilveiebringe et middel for automatisk å provide a means of automatically to
kunne regulere nivået av det smeltede could regulate the level of the molten
metall i et støpehjulsapparat av den kontinuerlig støpende type. Prinsipielt opp-nåes denne hensikt ved å neddykke en metal in a casting wheel apparatus of the continuous casting type. In principle, this purpose is achieved by submerging one
væskenivådetektor i metalldammen i rillen liquid level detector in the metal pond in the groove
på toppen av hjulet, og å regulere tilførse-len av smeltet metall i overensstemmelse on top of the wheel, and to regulate the supply of molten metal accordingly
med det nivå som angis av detektoren. with the level indicated by the detector.
Ifølge oppfinnelsen omfatter et apparat for regulering av nivået av det smeltede According to the invention comprises an apparatus for regulating the level of the molten
metall i en kontinuerlig støpende maskin metal in a continuous casting machine
av den type hvor formen dannes av et of the type where the form is formed by a
roterende støpehjul i samvirke med et rotating casting wheel in cooperation with a
bånd, en nivådetektor som har et luftinn-løp og en rekke luftutløpskanaler anordnet på innbyrdes avstand fra hverandre i tape, a level detector having an air inlet and a number of air outlet channels arranged at a distance from each other in
nevnte nivådetektor, slik at den mengde luft som unnslipper fra denne er avhengig av det antall åpninger som er dekket, idet nivådetektoren er anordnet slik at den rager ned i metalldammen og er forbundet med en lavtrykksluftkilde gjennom en begrenset åpning med en så liten stør-relse at trykket av luften som går inn i said level detector, so that the amount of air that escapes from it depends on the number of openings that are covered, the level detector being arranged so that it protrudes into the metal pond and is connected to a low-pressure air source through a limited opening of such a small size that the pressure of the air entering the
detektoren er avhengig av antall ikke-dekkede åpninger, hvorhos detektoren og-så er forbundet med en innretning som er følsom for et lufttrykk, hvilken innretning så igjen styrer anordninger for å regulere metall-tilførselen til støpehjulet. the detector is dependent on the number of uncovered openings, in which case the detector is also connected to a device which is sensitive to an air pressure, which device in turn controls devices to regulate the metal supply to the casting wheel.
En form for et apparat for regulering av nivået av aluminium i et apparat for kontinuerlig støpning av aluminium ved støpehjulsmetoden er vist på vedlagte teg-ning, hvor: Fig. 1 viser en generell anordning av apparatet, og A form of an apparatus for regulating the level of aluminum in an apparatus for continuous casting of aluminum by the casting wheel method is shown in the attached drawing, where: Fig. 1 shows a general arrangement of the apparatus, and
fig. 2 viser detektorelementet i større fig. 2 shows the detector element on a larger scale
målestokk. yardstick.
I fig. 1 består den kontinuerlige støpe-anordning av et roterbart støpehjul 1, som har en rille med hensiktsmessig tverrsnitt rundt omkretsen. Denne rille dekkes av et stålbånd 2t som beveger seg rundt synkront med støpehjulet 1, og er understøttet på hjulene 3. Smeltet metall fra en smelte-ovn helles ned i rillen i hjulet 1 ved hjelp av en renne 4, og støpestrimmelen 5 føres kontinuerlig ut fra den andre ende av støpehjulet. Dette er en konvensjonell anordning for kontinuerlig fremstilling av en støpt stang eller strimmel, og der foreligger flere kjente alternative anordninger av slike med riller forsynte støpehjul og til-hørende dekkbånd. Oppfinnelsen kan imid-lertid komme til anvendelse for alle slike konstruksjoner. In fig. 1, the continuous casting device consists of a rotatable casting wheel 1, which has a groove with an appropriate cross-section around the circumference. This groove is covered by a steel band 2t which moves around synchronously with the casting wheel 1, and is supported on the wheels 3. Molten metal from a melting furnace is poured into the groove in the wheel 1 by means of a chute 4, and the casting strip 5 is continuously fed out from the other end of the casting wheel. This is a conventional device for the continuous production of a cast rod or strip, and there are several known alternative devices of such grooved casting wheels and associated tire bands. However, the invention can be used for all such constructions.
Oppfinnelsens hovedtrekk er reguler-ingen av metallnivået på toppen av formen, hvor båndet møter hjulets omkrets. Strømmen av metall i rennen reguleres av en bevegelig port 6, som heves og senkes av en reversibel luftmotor 7, som igjen styres av en lufttrykk-forsterker 8. Det vertikale nivå av porten 6 er avhengig av det trykk som frembringes av forsterkeren 8, idet minskning av trykket bevirker en hevning av porten. Både luftmotoren 7 og lufttrykk-forsterkeren 8 er kommersielt til-gjengelige enheter, idet luftmotoren f. eks. kan være en Foxboro modell diafragma drivarm nr. 20E. Lufttrykk-forsterkeren 8, som kan være en Foxboro modell nr. 40, 0 — 355,6 mm vanntrykk indikerende regu-leringsanordnlng, registrerer forandringer 1 lufttrykket i ledningen 9, til hvilken luft tilføres fra en kilde (ikke vist) for luft med konstant trykk ved et lavt trykk på om-kring 0,0703 kg pr. cm<2>, gjennom en innsnevret åpning 10. Lufttrykket i ledningen 9 reguleres ved lekkasjen fra denne gjennom en nivådetektor 11, som er festet til enden av rennen 4. Denne detektor 11 er anordnet slik at den ligger i en skrå stilling i rillen på toppen av støpehjulet 1. Nivådetektoren 11 består av et krumt rør, fremstillet av et materiale som motstår tæringsangrep av metallet som støpes. Den del av røret som søal ligge i den øvre del av formhulrommet som tilveiebringes ved rillen i støpehjulet og det samvirkende bånd er bøyet til en krumning svarende til hjulets, og er fortrinnsvis anbragt slik at dens akse ligger i samme avstand fra sidene i formhulrommet. Røret er demonterbart anbragt i en fjærbelastet blokk 12, som igjen er festet til enden av rennen 4. Me-tallrøret er forbundet med luftledningen 9 ved hjelp av et polytenrør, og er forsynt med en rekke utløpsåpninger 14, som under drift ligger på forskjellige nivåer inne i rillen i hjulet 1, slik dette sees av fig. 1. Ved korrekt tilpasning av størrelsen av innsnevringen 10 i forhold til åpningene 14, vil en suksessiv lukning av åpningene 14 resultere i en forandring av lufttrykket i ledningen 9. Lufttrykk-forsterkeren 8 styrer drivanordningen 7 på en slik måte at en økning i lufttrykket i ledningen 9 gir seg utslag i en nedadgående bevegelse av porten 6, slik at strømmen av metall til støpehjulet reduseres, og omvendt. The main feature of the invention is the regulation of the metal level at the top of the mold, where the band meets the circumference of the wheel. The flow of metal in the chute is regulated by a movable gate 6, which is raised and lowered by a reversible air motor 7, which in turn is controlled by an air pressure amplifier 8. The vertical level of the gate 6 is dependent on the pressure produced by the amplifier 8, as reduction of the pressure causes a raising of the gate. Both the air motor 7 and the air pressure amplifier 8 are commercially available units, the air motor e.g. may be a Foxboro model diaphragm drive arm No. 20E. The air pressure amplifier 8, which may be a Foxboro Model No. 40, 0-355.6 mm water pressure indicating regulator, senses changes 1 the air pressure in line 9, to which air is supplied from a source (not shown) of constant air pressure at a low pressure of about 0.0703 kg per cm<2>, through a narrowed opening 10. The air pressure in the line 9 is regulated by the leakage from this through a level detector 11, which is attached to the end of the chute 4. This detector 11 is arranged so that it lies in an inclined position in the groove of the top of the casting wheel 1. The level detector 11 consists of a curved tube, made of a material that resists corrosion attack by the metal being cast. The part of the pipe which is to lie in the upper part of the mold cavity provided by the groove in the casting wheel and the cooperating band is bent to a curvature corresponding to that of the wheel, and is preferably arranged so that its axis lies at the same distance from the sides of the mold cavity. The pipe is demountably placed in a spring-loaded block 12, which in turn is attached to the end of the chute 4. The metal pipe is connected to the air line 9 by means of a polyethylene pipe, and is provided with a number of outlet openings 14, which are located at different levels during operation inside the groove in wheel 1, as can be seen from fig. 1. By correctly adapting the size of the constriction 10 in relation to the openings 14, a successive closing of the openings 14 will result in a change in the air pressure in the line 9. The air pressure amplifier 8 controls the drive device 7 in such a way that an increase in the air pressure in the line 9 results in a downward movement of the gate 6, so that the flow of metal to the casting wheel is reduced, and vice versa.
Utløpet fra lufttrykk-forsterkeren kan anvendes for en pneumatisk eller pneumatisk-élektrisk anordning for styring av helningen av smelteovnen, fra hvilken metallet helles ned i rennen. Dette kan skje i stedet for, eller i tillegg til, styringen av porten i rennen. The outlet from the air pressure amplifier can be used for a pneumatic or pneumatic-electric device for controlling the inclination of the melting furnace, from which the metal is poured into the chute. This can happen instead of, or in addition to, the control of the gate in the chute.
Røret 11 har fortrinnsvis en ytre diameter på 4,76 mm, og en indre diameter på 3,17 mm, og åpningene 14 har 0,762 mm i diameter, med en innbyrdes avstand på 3,17 mm, mens den nedre ende av røret er av-sluttet med et hull på 1,59 mm i diameter. Innsnevringen 10 er en åpning på 1,524 mm i diameter. The tube 11 preferably has an outer diameter of 4.76 mm, and an inner diameter of 3.17 mm, and the openings 14 are 0.762 mm in diameter, with a mutual distance of 3.17 mm, while the lower end of the tube is of -ended with a hole of 1.59 mm in diameter. The constriction 10 is an opening of 1.524 mm in diameter.
Det er en fordel ved apparatet ifølge oppfinnelsen at det kan tilpasses for fore-kommende støpehjulstyper uten noen mo-difikasjon av hverken støpehjulet eller stålbåndet. It is an advantage of the apparatus according to the invention that it can be adapted for existing casting wheel types without any modification of either the casting wheel or the steel band.
Det er bare nødvendig å anordne nivådetektor elementet 11 slik at dette festes til enden av rennen, og at der anbringes en bevegelig port i denne, eller andre styre-organ som kan anbringes hvor som helst i tilførselen av smeltet metall. It is only necessary to arrange the level detector element 11 so that it is attached to the end of the chute, and that a movable gate is placed in this, or other control means which can be placed anywhere in the supply of molten metal.
Claims (3)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NLAANVRAGE7010604,A NL171144B (en) | 1970-07-17 | 1970-07-17 | PROCESS FOR REDUCING THE TOTAL SULFUR CONTENT OF CLAUSE GASES. |
Publications (2)
Publication Number | Publication Date |
---|---|
NO132088B true NO132088B (en) | 1975-06-09 |
NO132088C NO132088C (en) | 1975-09-17 |
Family
ID=19810608
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO2707/71A NO132088C (en) | 1970-07-17 | 1971-07-15 |
Country Status (18)
Country | Link |
---|---|
JP (1) | JPS5716846B1 (en) |
AT (1) | AT308768B (en) |
AU (1) | AU459768B2 (en) |
BE (1) | BE770058A (en) |
CH (1) | CH580982A5 (en) |
CS (1) | CS179372B2 (en) |
DE (1) | DE2135522C2 (en) |
DK (1) | DK149328C (en) |
ES (1) | ES393290A1 (en) |
FI (1) | FI56320C (en) |
FR (1) | FR2101724A5 (en) |
GB (1) | GB1356289A (en) |
IE (1) | IE35451B1 (en) |
IT (1) | IT941574B (en) |
NL (1) | NL171144B (en) |
NO (1) | NO132088C (en) |
SU (1) | SU751318A3 (en) |
ZA (1) | ZA714698B (en) |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL7310929A (en) * | 1973-08-08 | 1974-01-25 | ||
FR2295784A1 (en) * | 1974-12-27 | 1976-07-23 | Inst Francais Du Petrole | PROCESS FOR DEPURING A GAS CONTAINING SULFUR COMPOUNDS |
GB1470950A (en) * | 1976-03-08 | 1977-04-21 | Shell Int Research | Process for working-up hydrogen sulphide-containing gases |
DE2648190C3 (en) * | 1976-10-25 | 1980-02-21 | Metallgesellschaft Ag, 6000 Frankfurt | Process for the production of sulfur by the Claus process |
GB1563251A (en) * | 1976-12-07 | 1980-03-26 | Shell Int Research | Process for working hydrogen suphidecontaining gases |
NL7701174A (en) * | 1977-02-04 | 1978-08-08 | Shell Int Research | PROCESS FOR PREPARING A GAS MIX WITH DESIRED H2S / CO2 RATIO. |
FR2425886A1 (en) * | 1978-05-16 | 1979-12-14 | Elf Aquitaine | PROCESS FOR PURIFYING INDUSTRIAL WASTE GASES CONTAINING LOW CONCENTRATIONS OF SULFUR COMPOUNDS |
NL186377C (en) | 1978-05-23 | 1990-11-16 | Shell Int Research | PROCESS FOR PROCESSING HYDROGEN-CONTAINING GASES. |
GB2116531B (en) * | 1982-03-11 | 1985-11-20 | Shell Int Research | Process and apparatus for the combustion of ammonia-containing waste gases |
FR2631561B1 (en) * | 1988-05-20 | 1990-07-20 | Elf Aquitaine | PROCESS AND DEVICE FOR THE REMOVAL OF LOW CONCENTRATION OF H2S IN A GAS ALSO CONTAINING A LARGE QUANTITY OF WATER VAPOR |
GB8830199D0 (en) * | 1988-12-23 | 1989-02-22 | Shell Int Research | Removing hydrogen sulphide from a gas mixture |
DE3901600C2 (en) * | 1989-01-20 | 1998-12-24 | Krupp Koppers Gmbh | Process for the treatment of vacuum exhaust air from tar distillation plants |
AU638543B2 (en) * | 1990-02-09 | 1993-07-01 | Mitsubishi Jukogyo Kabushiki Kaisha | Process for purifying high-temperature reducing gases and integrated coal gasification combined cycle power generation plant |
US5266274A (en) * | 1992-10-13 | 1993-11-30 | Tpa, Inc. | Oxygen control system for a sulfur recovery unit |
AR009277A1 (en) * | 1996-08-22 | 2000-04-12 | Shell Int Research | PROCESS FOR THE REDUCTION OF THE TOTAL SULFUR CONTENT IN GASES CONTAINING HYDROGEN SULFIDE AND OTHER SULFUR COMPONENTS |
RU2562481C2 (en) * | 2014-01-29 | 2015-09-10 | Игорь Анатольевич Мнушкин | Method and apparatus for producing elementary sulphur with tail gas post-treatment |
EP3067109B1 (en) * | 2015-03-12 | 2018-12-05 | Prosernat | Process for removing sulfur compounds from a gas with hydrogenation and direct oxidation steps |
WO2019022603A1 (en) | 2017-07-26 | 2019-01-31 | Wte-Tech B.V. | Process to treat a sulphur compounds comprising gaseous feed |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2361825A (en) * | 1941-08-25 | 1944-10-31 | Union Oil Co | Reduction of sulphur dioxide to hydrogen sulphide and free sulphur |
FR1105475A (en) * | 1954-01-24 | 1955-12-05 | Azote Office Nat Ind | Process for the desulphurization of industrial gases and vapors |
US2860030A (en) * | 1954-12-17 | 1958-11-11 | Phillips Petroleum Co | Recovery of hydrogen sulfide and/or carbon dioxide substantially free from hydrocarbons and substantially pure hydrocarbons by chemical treatment of an impure hydrocarbon stream |
US2887363A (en) * | 1956-09-28 | 1959-05-19 | Exxon Research Engineering Co | Conversion of methane to produce hydrogen sulfide |
US3476513A (en) * | 1966-08-25 | 1969-11-04 | Exxon Research Engineering Co | Process and apparatus for the conversion of so2 in flue gas to sulfur |
GB1116129A (en) * | 1967-03-02 | 1968-06-06 | Shell Int Research | Catalytic reduction of sulphur dioxide to hydrogen sulphide |
-
1970
- 1970-07-17 NL NLAANVRAGE7010604,A patent/NL171144B/en not_active IP Right Cessation
-
1971
- 1971-07-15 NO NO2707/71A patent/NO132088C/no unknown
- 1971-07-15 FI FI2009/71A patent/FI56320C/en active
- 1971-07-15 IT IT7344/71A patent/IT941574B/en active
- 1971-07-15 IE IE899/71A patent/IE35451B1/en unknown
- 1971-07-15 FR FR7125898A patent/FR2101724A5/fr not_active Expired
- 1971-07-15 DK DK349871A patent/DK149328C/en not_active IP Right Cessation
- 1971-07-15 ZA ZA714698A patent/ZA714698B/en unknown
- 1971-07-15 GB GB3321771A patent/GB1356289A/en not_active Expired
- 1971-07-15 JP JP5215671A patent/JPS5716846B1/ja active Pending
- 1971-07-15 ES ES393290A patent/ES393290A1/en not_active Expired
- 1971-07-15 CH CH1044271A patent/CH580982A5/xx not_active IP Right Cessation
- 1971-07-15 SU SU711683575A patent/SU751318A3/en active
- 1971-07-15 BE BE770058A patent/BE770058A/en not_active IP Right Cessation
- 1971-07-15 AU AU31283/71A patent/AU459768B2/en not_active Expired
- 1971-07-15 CS CS7100005221A patent/CS179372B2/en unknown
- 1971-07-15 AT AT617071A patent/AT308768B/en not_active IP Right Cessation
- 1971-07-15 DE DE2135522A patent/DE2135522C2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
BE770058A (en) | 1972-01-17 |
GB1356289A (en) | 1974-06-12 |
NO132088C (en) | 1975-09-17 |
IT941574B (en) | 1973-03-10 |
ES393290A1 (en) | 1973-08-16 |
AT308768B (en) | 1973-07-25 |
CH580982A5 (en) | 1976-10-29 |
DK149328B (en) | 1986-05-05 |
JPS5716846B1 (en) | 1982-04-07 |
FI56320C (en) | 1980-01-10 |
NL171144B (en) | 1982-09-16 |
AU3128371A (en) | 1973-01-18 |
IE35451L (en) | 1972-01-17 |
DE2135522C2 (en) | 1983-01-13 |
FI56320B (en) | 1979-09-28 |
IE35451B1 (en) | 1976-02-18 |
SU751318A3 (en) | 1980-07-23 |
NL7010604A (en) | 1972-01-19 |
AU459768B2 (en) | 1975-04-10 |
FR2101724A5 (en) | 1972-03-31 |
DE2135522A1 (en) | 1972-01-20 |
DK149328C (en) | 1986-10-06 |
CS179372B2 (en) | 1977-10-31 |
ZA714698B (en) | 1972-04-26 |
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