NO166834B - CLEANING CONTAINER AT CONTAINER. - Google Patents
CLEANING CONTAINER AT CONTAINER. Download PDFInfo
- Publication number
- NO166834B NO166834B NO831932A NO831932A NO166834B NO 166834 B NO166834 B NO 166834B NO 831932 A NO831932 A NO 831932A NO 831932 A NO831932 A NO 831932A NO 166834 B NO166834 B NO 166834B
- Authority
- NO
- Norway
- Prior art keywords
- support body
- mold
- specified
- molded
- removable
- Prior art date
Links
- 238000004140 cleaning Methods 0.000 title 1
- 239000004568 cement Substances 0.000 claims description 15
- 238000004519 manufacturing process Methods 0.000 claims description 9
- 239000010425 asbestos Substances 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 8
- 229910052895 riebeckite Inorganic materials 0.000 claims description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 7
- 239000000835 fiber Substances 0.000 claims description 6
- 229910052742 iron Inorganic materials 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 229920001875 Ebonite Polymers 0.000 claims description 2
- 229910010293 ceramic material Inorganic materials 0.000 claims description 2
- 238000001746 injection moulding Methods 0.000 claims description 2
- 239000004033 plastic Substances 0.000 claims description 2
- 238000005260 corrosion Methods 0.000 claims 1
- 230000007797 corrosion Effects 0.000 claims 1
- 239000002002 slurry Substances 0.000 claims 1
- 229910001220 stainless steel Inorganic materials 0.000 claims 1
- 239000010935 stainless steel Substances 0.000 claims 1
- 239000000725 suspension Substances 0.000 description 7
- 238000002347 injection Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 238000010790 dilution Methods 0.000 description 3
- 239000012895 dilution Substances 0.000 description 3
- 239000012528 membrane Substances 0.000 description 3
- 239000004744 fabric Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 230000008719 thickening Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 150000002505 iron Chemical class 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000001846 repelling effect Effects 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
- A61J1/00—Containers specially adapted for medical or pharmaceutical purposes
- A61J1/14—Details; Accessories therefor
- A61J1/1406—Septums, pierceable membranes
Landscapes
- Health & Medical Sciences (AREA)
- Pharmacology & Pharmacy (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Medical Preparation Storing Or Oral Administration Devices (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
- Thermally Insulated Containers For Foods (AREA)
- Table Devices Or Equipment (AREA)
Description
Anordning til.fremstilling av formstykker av fibersement, Device for the production of molded pieces of fiber cement,
særlig asbestsement é.l. especially asbestos cement etc.
Det er kjent å fremstille formstykker av asbestsement slik at det i hulrommet av en form innsproytes under trykk en vandig asbestsementblanding. Derved er formen generelt slik utformet at de flater som bestemmer den indre, kontur av. formstykket, trekkes med en gummihinne. Denne -gummihinne blåses opp hyd-raulisk eller pnevmatisk efter innsprøytningen til fortykning og utvanning av asbestsementblandingen. Ytterformen er forsynt med boringer til avledning av vannet som presses ut. Ved nye fremgangsmåter forsynes formene med stive vegger i stedet for gummihinner, og utvanningen og fortykningen av asbestsementblandingen skjer kun ved tilsvarende hoyt innsproytnings-trykk. It is known to produce mold pieces from asbestos cement so that an aqueous asbestos cement mixture is injected under pressure into the cavity of a mold. Thereby, the shape is generally designed so that the surfaces that determine the inner contour of the mold piece, is pulled with a rubber membrane. This rubber membrane is inflated hydraulically or pneumatically after injection to thicken and dilute the asbestos cement mixture. The outer shape is provided with holes to divert the water that is pressed out. In new methods, the molds are provided with rigid walls instead of rubber membranes, and the dilution and thickening of the asbestos cement mixture only takes place at a correspondingly high injection pressure.
Ved denne kjente fremgangsmåte blir det fremstilte, enda By this known method, it is produced, even
blote formstykke tatt ut ved hånd eller med en egnet anordning fra formen og henstilt for hardning resp. avbinding av sementen. Dermed må formstykket i de fleste tilfeller avstottes for å forhindre en sammensynkning eller en deformasjon p.g.a. sin egenvekt. Faren for deformasjon er storre jo storre flatene for formstykket som skal fremstilles er. Videre må påsettel-sen av det ennu blote formstykke på det tilsvarende stottelegeme skje med storste forsiktighet for ikke å skade formstykket . bare mold piece taken out by hand or with a suitable device from the mold and prepared for hardening or debonding of the cement. Thus, in most cases, the molded part must be supported to prevent a collapse or a deformation due to its own weight. The risk of deformation is greater the larger the surfaces of the mold to be produced. Furthermore, the fitting of the still-bare molded piece onto the corresponding support body must be done with the utmost care so as not to damage the molded piece.
De kjente fremgangsmåter har således dé ulemper at- for det forste et formstykke som er fremstilt ved en ytterligere arbeidsprosess, må settes på et stottelegeme, og for det annet at formstykket derved kan skades. The known methods thus have the disadvantages that, firstly, a molded part produced by a further work process must be placed on a support body, and secondly, that the molded part can thereby be damaged.
Disse ulemper forhindres ifblge oppfinnelsen ved at anordningen på en fra fremstilling av ensidig åpne formstykker av betong kjent måte inneholder et skålformig stottelegeme som ligger an mot en av formromsflåtene og er lett losbart forbundet med denne, hvilket stottelegeme er uttagbart fra anordningen sammen med det umiddelbart mot dette anliggende, ved innsprøytning fremstilte formstykke. Dette stottelegeme kan enten ligge an mot den indre kontur eller den ytre kontur av formstykket. According to the invention, these disadvantages are prevented by the fact that the device, in a manner known from the production of one-sided open form pieces of concrete, contains a bowl-shaped support body which rests against one of the form space rafts and is easily releasably connected to this, which support body can be removed from the device together with the immediately opposite in this case, a molded part produced by injection molding. This support body can either rest against the inner contour or the outer contour of the molded piece.
Anvendelsen av slike stottelegemer for fremstilling av ensidig åpne formstykker hadde lenge vært kjent for formstykker av betong, som ble trykket inn i det tilsvarende foringsrommet, hvilket tilsvarte en vanlig innfylling uten anvendelse av hoyere trykk. Dette prinsipielt håndverksmessige arbeidsom-rådet står likevel så fjernt fra maskinell fremstilling av fibersement, især asbestsement-elementer ved innsproytning av en grotaktig, altså flytende, suspensjon under hoyt trykk at på det sistnevnte område, som den foreliggende oppfinnelse refererer til, aldri ble tenkt på anvendelse av stottelegemer, selv om denne innsprbytningsmåten for fibersementsuspnesjoner likeledes har vært kjent i en årrekke. Grunnen til dette ligger i anvendelsen av det hbye innsprbytningstrykket i forbindelse med formromsutviklingen, ved hvilken minst en del av formromsveggene er utstyrt med åpninger, som tillater vannandelen i suspensjonen å renne ut. Herved mente man å The use of such support bodies for the production of one-sided open mold pieces had long been known for mold pieces of concrete, which were pressed into the corresponding lining space, which corresponded to a normal filling without the use of higher pressure. This fundamentally artisanal work area is nevertheless so far removed from the mechanical production of fiber cement, especially asbestos cement elements by injecting a cavernous, i.e. liquid, suspension under high pressure that the latter area, to which the present invention refers, was never thought of application of support bodies, although this injection method for fiber cement suspensions has also been known for a number of years. The reason for this lies in the application of the high injection pressure in connection with the mold space development, whereby at least part of the mold space walls are equipped with openings, which allow the water portion in the suspension to drain out. By this it was meant to
ha sikret tilstrekkelig effektiv utvanning av den innsproytede suspensjon. have ensured sufficiently effective dilution of the injected suspension.
Forst nyere oppgavestillinger i rasjonaliseringen av den industrielle suspensjonsfremgangsmåten for fremstilling av fibersement-elementer forte til forholdsreglene ifolge oppfinnelsen, nemlig også ved denne fremgangsmåten å anvende stottelegemer for det enda ikke fullt stivnede formlegeme for å muliggjore dennes umiddelbare uttagning av formingsrommet. Det ble derved fastslått at den ytterligere besparing i prod-uksjonsomkostningene overraskende nok ér vesentlig, også når man tar i betraktning den raske vannavgang fra suspensjonen gjennom formromsveggene og at de ved anvendelse av stotte-legémer forbundne merutgifter overkompenserer når den hbye pris på formrommet av et slikt suspensjonsanlegg blir inkludert i kalkuleringen. First, more recent task positions in the rationalization of the industrial suspension method for the production of fiber cement elements forte to the precautions according to the invention, namely also in this method to use support bodies for the not yet fully hardened form body to enable its immediate removal from the forming space. It was thereby determined that the further savings in production costs are surprisingly significant, also when taking into account the rapid water exit from the suspension through the mold chamber walls and that the additional costs associated with the use of support bodies overcompensate when the high price of the mold chamber of a such suspension system is included in the calculation.
Stottelegemet kan da være utformet slik at det kan anvendes flere ganger eller slik at det kastes efter bruk. The support body can then be designed so that it can be used several times or so that it is thrown away after use.
Oppfinnelsen skal forklares i sine grunntrekk og i ytterligere enkeltheter ved hjelp av tegningen som viser noen utforelses-eksempler. Fig. 1 viser et tverrsnitt gjennom en form, ved hvilken en indre skål tjener som stottelegeme for formstykket. Fig. 2 viser et tverrsnitt gjennom en form, ved hvilken en ytre slcål tjener som stottelegeme for formstykket. Fig. 3 viser et tverrsnitt gjennom en form for mindre formstykker, ved hvilken formskjermen sammen med formstykket er utformet uttagbart, dvs. er selv anvendelig som stottelegeme. Fig. 4 viser en perspektivisk fremstilling av de enkélte deler av anordningen ifolge fig. 1. Fig. 5 viser en utforelsesform, ved hvilken formskålen er mekanisk lett losbart forbundet med fqrmkjernen. Fig. 6 viser en utforelsesform, ved hvilken formskålen ved hjelp av en elektromagnet er lett losbart forbundet med formkjernen. Fig. 7 viser en utf orelsesf orm,, ved hvilken formskålen ved hjelp av vakuum er lett losbart forbundet med formkjernen. Anordningen ifolge fig. 1 resp. 4 består i det vesentlige av en bunnplate 1, som er forsynt med boringer, av sideplater 2(l som likeledes er forsynt med boringer, og en dekkplate 3 på hvilken formkjernen 4 er festet og som kan påskyves en form-skål eller stottelegeme 5. Stottelegemet 5 kan mekanisk ved hjelp av elektromagneter, vakuumsugere elier andre, egnede midler, holdes lett losbart på formkjernen. Bunnplaten og sideplatene er dekket med finmaskede metallsikt som ytterligere - for å oppnå en glatt overflate av formlegemet er avdekket med et filtervev. Anordningen holdes sammen ved hjelp av midler (presse e.l.) som ikke vises her. The invention shall be explained in its basic features and in further detail with the help of the drawing which shows some exemplary embodiments. Fig. 1 shows a cross-section through a mould, in which an inner bowl serves as a support body for the mold piece. Fig. 2 shows a cross-section through a mould, in which an outer shell serves as a support body for the mold piece. Fig. 3 shows a cross-section through a mold for smaller molded pieces, in which the mold shield together with the molded piece is designed to be removable, i.e. can itself be used as a support body. Fig. 4 shows a perspective representation of the individual parts of the device according to fig. 1. Fig. 5 shows an embodiment in which the mold bowl is mechanically easily releasably connected to the mold core. Fig. 6 shows an embodiment in which the mold bowl is easily releasably connected to the mold core by means of an electromagnet. Fig. 7 shows an embodiment mold, in which the mold bowl is easily releasably connected to the mold core by means of a vacuum. The device according to fig. 1 or 4 essentially consists of a bottom plate 1, which is provided with holes, of side plates 2(l which are also provided with holes, and a cover plate 3 on which the mold core 4 is fixed and which can be pushed onto a mold bowl or support body 5. The support body 5 can be held mechanically by means of electromagnets, vacuum cleaners or other suitable means, easily releasably on the mold core. The bottom plate and the side plates are covered with fine-mesh metal sieves which, in order to achieve a smooth surface of the mold body, are additionally covered with a filter cloth. The device is held together using means (press etc.) that are not shown here.
Efter innsprøytning av asbestsementblandingen i. hulrpmmet 7 . gjennom en stuss 26, og gjennomfort utvanning og fortykning, fjernes sideplatene 2, loses forbindelsen mellom formkjernen 4 og stottelegemet 5, og det fremstilte formstykke tas ut av formen i ennu myk tilstand sammen med stolte legemet og hen-stilles. Til fremstillingen av det neste formstykke settes et nytt stottelegeme 5 på formkjernen 4, og formen lukkes. After injecting the asbestos cement mixture into the cavity 7. through a spigot 26, and dilution and thickening are carried out, the side plates 2 are removed, the connection between the mold core 4 and the support body 5 is loosened, and the manufactured part is taken out of the mold in a still soft state together with the support body and stored. For the production of the next mold piece, a new support body 5 is placed on the mold core 4, and the mold is closed.
Ved utforelsesformen ifolge fig. 2 består formen av en ytter-del 9, en av flere deler sammensatt indre del 10 som igjen er forsynt med utvanningsboringer og til formningshulrommet 11 er avdekket med et siktvev. Ytterkonturen av formstykket som skal fremstilles i denne form, dannes av, formskålen 12 . som er uttagbar. Innsprbytningen av blandingen skjer igjen gjennom stussen 26. In the embodiment according to fig. 2, the mold consists of an outer part 9, an inner part 10 composed of several parts, which is again provided with drainage holes and the forming cavity 11 is covered with a screening fabric. The outer contour of the mold piece to be produced in this mold is formed by the mold bowl 12. which is removable. The injection of the mixture takes place again through the spigot 26.
I fig. 3 vises en utforelsesform som er fortrinnsvis anvendbar for små formlegemer. Her består formen av en bunnplate 13, sideplatene 14, en dekkplate 15 og en kjerne 16 som er lett losbart forbundet med dekkplaten 15. Ved denne utforelses- In fig. 3 shows an embodiment which is preferably applicable for small molded bodies. Here the mold consists of a bottom plate 13, the side plates 14, a cover plate 15 and a core 16 which is easily releasably connected to the cover plate 15. In this embodiment
form blir det fremstilte formstykke tatt ut sammen med formkjernen 16. mold, the manufactured mold piece is taken out together with the mold core 16.
De beskrevne anordninger kan anvendes såvel for rotasjons-legemer som for kvadratiske, rektangulære eller anderledes formede ensidig åpne formstykker. De uttagbare formkjerner eller stottelegemer dannes fortrinnsvis av kunststoff eller hårdgummi. Også ikke-rustehde stål, mot korrosjon beskyttet jernblikk eller også keramiske materialer er egnet. The devices described can be used both for rotary bodies and for square, rectangular or differently shaped shaped pieces open on one side. The removable mold cores or support bodies are preferably formed of plastic or hard rubber. Non-rusting steel, corrosion-protected iron sheet metal or ceramic materials are also suitable.
Fig. 5 til 7 - som kan betraktes som suppleméntering av fig. 1 resp. 4 viser midler for losbar beféstigelse av stottelegemet 5 på dekkplaten 3 resp. på formkjernen 4. Ifolge fig. 5 har dette stottelegeme 5 på sine sidevegger fremspring 17 bak hvilke det griper haker 18 som holdes ved hjelp av trykkfjærer 19. For å lose stottelegemet fra delene 3 og 4 trykkes hakene Fig. 5 to 7 - which can be considered as a supplement to fig. 1 or 4 shows means for releasably attaching the support body 5 to the cover plate 3 or on the mold core 4. According to fig. 5, this support body 5 has on its side walls projections 17 behind which it grips hooks 18 which are held by compression springs 19. To release the support body from parts 3 and 4, the hooks are pressed
18 utenfra enten ved hånd eller mekanisk mot fjærenes 19 18 from the outside either by hand or mechanically against the springs 19
kraft lett utover. For anordningen av stottelegemet 5 er en enkel påskyyning tilstrekkelig. force slightly outwards. For the arrangement of the support body 5, a simple attachment is sufficient.
Ifolge fig. 6 er stottelegemet 5 forsynt med en jernplate 20. Overfor denne jernplaté sitter en elektromagnet 21 i formkjernen 4. ved inn- eller utkobling av strommen som flyter gjennom elektromagneten, holdes eller frigis stottelegemet 5. According to fig. 6, the support body 5 is provided with an iron plate 20. Opposite this iron plate sits an electromagnet 21 in the mold core 4. when the current flowing through the electromagnet is switched on or off, the support body 5 is held or released.
Ifolge fig. 7 holdes stottelegemet 5 ved hjelp av vakuum. According to fig. 7, the support body 5 is held by means of a vacuum.
Dertil er formkjernen 4 forsynt med uttagninger 22 som står In addition, the mold core 4 is provided with recesses 22 which stand
i forbindelse med vakuumanslutningen 24 ved hjelp av boringer 23. Sammen med mykgummitetninger 25 danner disse uttagninger sugeskåler som holder stottelegemet 5 ved ovakuering. For å lose stottelegemet bringes disse hulrom enten i forbindelse med atmosfæren eller trykkluft fores inn, hvorved det endog oppnås en avstbtende virkning. in connection with the vacuum connection 24 by means of bores 23. Together with soft rubber seals 25, these recesses form suction cups which hold the support body 5 during vacuuming. In order to loosen the supporting body, these cavities are either brought into contact with the atmosphere or compressed air is fed in, whereby a repelling effect is even achieved.
Også anordningene ifolge fig. 5 og 6 kan forsynes med utkastere som avstbter stottelegemet 5 efter lbsningen av holdeanordningen. Also the devices according to fig. 5 and 6 can be provided with ejectors which dust the support body 5 after the release of the holding device.
Claims (9)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE8203365 | 1982-06-01 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| NO831932L NO831932L (en) | 1983-12-02 |
| NO166834B true NO166834B (en) | 1991-06-03 |
| NO166834C NO166834C (en) | 1991-09-11 |
Family
ID=20346936
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO831932A NO166834C (en) | 1982-06-01 | 1983-05-30 | CLEANING CONTAINER AT CONTAINER. |
Country Status (7)
| Country | Link |
|---|---|
| DK (1) | DK165483C (en) |
| GB (1) | GB2121016B (en) |
| IE (1) | IE54272B1 (en) |
| IL (1) | IL68821A (en) |
| NL (1) | NL192606C (en) |
| NO (1) | NO166834C (en) |
| SE (1) | SE455165B (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2613707B1 (en) * | 1987-04-07 | 1991-05-03 | Fuso Pharmaceutical Ind | METHOD AND DEVICE FOR SEALING THE NUT OF A SYNTHETIC RESIN TRANSFUSION CONTAINER |
| DE19500459A1 (en) * | 1995-01-10 | 1996-07-11 | Pohl Gmbh & Co Kg | Arrangement on infusion bottles or the like |
| JP3409943B2 (en) * | 1995-05-25 | 2003-05-26 | 昭和電工株式会社 | Plug for infusion container and method for producing the same |
| US5871110A (en) * | 1996-09-13 | 1999-02-16 | Grimard; Jean-Pierre | Transfer assembly for a medicament container having a splashless valve |
| DE19717765C1 (en) * | 1997-04-26 | 1999-02-25 | Fresenius Ag | Sterile connector and foil pouch with a sterile connector |
| US6090093A (en) * | 1997-09-25 | 2000-07-18 | Becton Dickinson And Company | Connector assembly for a vial having a flexible collar |
| US5925029A (en) * | 1997-09-25 | 1999-07-20 | Becton, Dickinson And Company | Method and apparatus for fixing a connector assembly onto a vial with a crimp cap |
| US6003566A (en) * | 1998-02-26 | 1999-12-21 | Becton Dickinson And Company | Vial transferset and method |
| US7285423B2 (en) * | 2000-12-22 | 2007-10-23 | Biotage Ab | Penetrable pressure proof sealing for a container |
| JP4060222B2 (en) * | 2003-03-26 | 2008-03-12 | 株式会社大塚製薬工場 | Chemical container |
| DE102004051300C5 (en) | 2004-10-20 | 2013-01-24 | Fresenius Kabi Deutschland Gmbh | Cap for containers filled with medical fluids |
| JP5889572B2 (en) * | 2011-08-18 | 2016-03-22 | 内外化成株式会社 | Elastic plug body, medical cap and method for producing the same |
| ITMI20131118A1 (en) * | 2013-07-04 | 2015-01-05 | Massimiliano Luciani | IMPROVED SECURITY ELECTRONIC CIGARETTE |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3831813A (en) * | 1973-05-11 | 1974-08-27 | Haemonetics Corp | High-flow capacity, self-regulating bypass spike |
| US4133441A (en) * | 1978-03-23 | 1979-01-09 | Baxter Travenol Laboratories, Inc. | Injection site |
-
1983
- 1983-05-26 SE SE8302947A patent/SE455165B/en not_active IP Right Cessation
- 1983-05-30 NO NO831932A patent/NO166834C/en unknown
- 1983-05-30 IE IE127583A patent/IE54272B1/en not_active IP Right Cessation
- 1983-05-31 NL NL8301925A patent/NL192606C/en not_active IP Right Cessation
- 1983-05-31 DK DK244883A patent/DK165483C/en not_active IP Right Cessation
- 1983-05-31 IL IL6882183A patent/IL68821A/en not_active IP Right Cessation
- 1983-06-01 GB GB08315032A patent/GB2121016B/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| SE8302947L (en) | 1983-12-02 |
| SE455165B (en) | 1988-06-27 |
| GB2121016A (en) | 1983-12-14 |
| DK165483C (en) | 1993-04-19 |
| GB8315032D0 (en) | 1983-07-06 |
| NO166834C (en) | 1991-09-11 |
| DK244883A (en) | 1983-12-02 |
| IE831275L (en) | 1983-12-01 |
| SE8302947D0 (en) | 1983-05-26 |
| IL68821A (en) | 1986-02-28 |
| IE54272B1 (en) | 1989-08-02 |
| NL192606B (en) | 1997-07-01 |
| DK244883D0 (en) | 1983-05-31 |
| NL8301925A (en) | 1984-01-02 |
| NO831932L (en) | 1983-12-02 |
| NL192606C (en) | 1997-11-04 |
| GB2121016B (en) | 1985-10-23 |
| DK165483B (en) | 1992-12-07 |
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