FI58687C - Foerfarande och anordning foer torkning av traevirke - Google Patents
Foerfarande och anordning foer torkning av traevirke Download PDFInfo
- Publication number
- FI58687C FI58687C FI2700/74A FI270074A FI58687C FI 58687 C FI58687 C FI 58687C FI 2700/74 A FI2700/74 A FI 2700/74A FI 270074 A FI270074 A FI 270074A FI 58687 C FI58687 C FI 58687C
- Authority
- FI
- Finland
- Prior art keywords
- timber
- chamber
- wood
- electrodes
- drying
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B7/00—Drying solid materials or objects by processes using a combination of processes not covered by a single one of groups F26B3/00 and F26B5/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B3/00—Drying solid materials or objects by processes involving the application of heat
- F26B3/32—Drying solid materials or objects by processes involving the application of heat by development of heat within the materials or objects to be dried, e.g. by fermentation or other microbiological action
- F26B3/34—Drying solid materials or objects by processes involving the application of heat by development of heat within the materials or objects to be dried, e.g. by fermentation or other microbiological action by using electrical effects
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B5/00—Drying solid materials or objects by processes not involving the application of heat
- F26B5/04—Drying solid materials or objects by processes not involving the application of heat by evaporation or sublimation of moisture under reduced pressure, e.g. in a vacuum
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B5/00—Drying solid materials or objects by processes not involving the application of heat
- F26B5/04—Drying solid materials or objects by processes not involving the application of heat by evaporation or sublimation of moisture under reduced pressure, e.g. in a vacuum
- F26B5/048—Drying solid materials or objects by processes not involving the application of heat by evaporation or sublimation of moisture under reduced pressure, e.g. in a vacuum in combination with heat developed by electro-magnetic means, e.g. microwave energy
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
- B27K3/02—Processes; Apparatus
- B27K3/0207—Pretreatment of wood before impregnation
- B27K3/0214—Drying
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B2210/00—Drying processes and machines for solid objects characterised by the specific requirements of the drying good
- F26B2210/16—Wood, e.g. lumber, timber
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- Microbiology (AREA)
- Biomedical Technology (AREA)
- Biotechnology (AREA)
- Drying Of Solid Materials (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
Claims (5)
1. Pörfarande för torkning av trävirke med dielektrisk torkning vid undertryck, varvid det för torkning avsedda trävirket införs i en kammare, som evakueras för utsättning av trävirket för ett tryck under atmosfärtrycket, och man alstrar ett växelpotentialfält tvärs över trävirket för dielektrisk upphettning av trävirket och fuktigheten däri tili en temperatur, väri vatten avdunstas, varefter dielektrisk upphettning av virket fortsättes i en grad, som huvudsakligen mot-svarar absorberande värme för att kompensera avdunstningsvärmet i det avdunstande vattnet, samtidigt som undertryck bibehälles i det slutna utrymmet tills trävirkets fukthalt har sjunkit tili önskad niva, varefter det torkade trävirket uttages ur kammaren, känneteck-n a t därav, att ett växelpotentialfält alstras mellan elektroder, som är pälagda med ett tunnt dielektriskt skikt för förhindrande av koronaurladdningar, gnistring och kortslutningsströmmar genom fuktig-hetsbanor i trävirket, eller för förhindrande av andra plötsliga urladdningar av växelströmpotentialen, och att elektroderna hälles i fast läge med avseende pä trävirket under päverkan av växelpotentialen.
2. Förfarande enligt patentkravet 1, kännetecknat därav, att under torkningssteget trävirkets temperatur regleras pä sä sätt, att den icke överstiger 88°C, och företrädesvis icke överstiger 82°C, och att trycket under torkningssteget är lägre än 375 mm Hg.
3. Anordning för utförande av förfarandet enligt patentkravet 1 eller 2, omfattande en kammare, en anordning för understöttande av trävirket i kammaren, en anordning som star i förbindelse med kammarens inre för dess evakuering, en anordning för alstrande av ett växelpotentialfält tvärs över trävirket i kammaren för upphettning av detta
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US39853973A | 1973-09-17 | 1973-09-17 | |
US39853973 | 1973-09-17 |
Publications (3)
Publication Number | Publication Date |
---|---|
FI270074A FI270074A (sv) | 1975-03-18 |
FI58687B FI58687B (fi) | 1980-11-28 |
FI58687C true FI58687C (fi) | 1981-03-10 |
Family
ID=23575766
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI2700/74A FI58687C (fi) | 1973-09-17 | 1974-09-16 | Foerfarande och anordning foer torkning av traevirke |
Country Status (26)
Country | Link |
---|---|
US (1) | US3986268A (sv) |
JP (1) | JPS5076201A (sv) |
AR (1) | AR204636A1 (sv) |
BE (1) | BE820032A (sv) |
BR (1) | BR7407698D0 (sv) |
CA (1) | CA1017414A (sv) |
CH (1) | CH580792A5 (sv) |
CS (1) | CS183760B2 (sv) |
DD (1) | DD119306A5 (sv) |
DE (1) | DE2443436A1 (sv) |
DK (1) | DK485874A (sv) |
ES (2) | ES430105A1 (sv) |
FI (1) | FI58687C (sv) |
FR (1) | FR2244147B1 (sv) |
GB (1) | GB1470719A (sv) |
HK (1) | HK38182A (sv) |
HU (1) | HU172156B (sv) |
IT (1) | IT1021457B (sv) |
MY (1) | MY8300005A (sv) |
NL (1) | NL7412308A (sv) |
NO (1) | NO141004C (sv) |
OA (1) | OA04779A (sv) |
PH (1) | PH11971A (sv) |
PL (1) | PL94573B1 (sv) |
SE (1) | SE401260B (sv) |
YU (1) | YU36812B (sv) |
Families Citing this family (84)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4064386A (en) * | 1976-04-30 | 1977-12-20 | Numrich Jr George R | Method of decorating wood and wood-like products |
US4123221A (en) * | 1976-12-27 | 1978-10-31 | Harrington Manufacturing Company | Bulk tobacco curing and drying structure |
US4146973A (en) * | 1977-04-14 | 1979-04-03 | Georgia-Pacific Corporation | Method and apparatus for drying veneer |
GB1567111A (en) * | 1978-02-13 | 1980-05-08 | Dawson Int | Radio-frequency textile drying method and apparatus |
JPS5520614A (en) * | 1978-07-31 | 1980-02-14 | Kagaku Gijutsucho Hoshasen Igaku Sogo Kenkyusho | Dehydrator |
JPS5934268B2 (ja) * | 1979-03-06 | 1984-08-21 | 株式会社芦田製作所 | 木材の乾燥方法 |
JPS5925137B2 (ja) * | 1979-05-23 | 1984-06-14 | 株式会社精工舎 | 乾燥装置 |
US4296555A (en) * | 1980-01-21 | 1981-10-27 | Preston Mark D | Methods and apparatus for conditioning plywood veneer with high frequency radio energy |
US4472618A (en) * | 1982-03-17 | 1984-09-18 | Power Dry Patent, Inc. | Lumber cart and electrode for dielectric drying kiln |
JPS5980691U (ja) * | 1982-11-24 | 1984-05-31 | ハウス食品工業株式会社 | 減圧マイクロ波乾燥装置 |
US4466198A (en) * | 1983-03-07 | 1984-08-21 | Doll Brendan L | Apparatus and method for drying lumber |
JPH0218478Y2 (sv) * | 1985-01-10 | 1990-05-23 | ||
FR2634007B1 (fr) * | 1988-07-05 | 1993-05-07 | Valeo | Procede de sechage d'un produit poreux contenant un solvant, avec recuperation du solvant |
JPH0736168Y2 (ja) * | 1989-05-01 | 1995-08-16 | 曙ブレーキ工業株式会社 | デイスクパツド加熱用治具 |
US4993171B1 (en) * | 1989-11-22 | 1996-07-02 | Boc Group Inc | Covering for a hydraulic ram of a freeze dryer |
JPH0649283B2 (ja) * | 1990-02-05 | 1994-06-29 | 富洋木材販売株式会社 | 木材の材質改良方法 |
DE4418695C1 (de) * | 1994-05-28 | 1995-07-13 | Opel Alfred Dipl Ing Fh | Vakuumtrockner für Schnitthölzer und Verfahren zum Trocknen von Holz |
RU2040744C1 (ru) * | 1994-07-12 | 1995-07-25 | Научно-производственный центр информационных и промышленных технологий РАН | Линия для термической обработки деталей |
WO1997046358A1 (fr) * | 1996-06-04 | 1997-12-11 | Moriya, Emiko | Procedes de sechage et d'impregnation du bois |
US5915811A (en) * | 1996-09-30 | 1999-06-29 | The Board Of Trustees Of The University Of Arkansas | Solar drying process and apparatus |
US5955023A (en) * | 1996-11-27 | 1999-09-21 | Callutech, Llc | Method of forming composite particle products |
AT408575B (de) * | 1997-10-07 | 2002-01-25 | Wolf Systembau Gmbh & Co Kg | Verfahren zum dielektrischen trocknen von holz |
FR2770441B1 (fr) * | 1997-10-30 | 2000-02-11 | Bernard Dedieu | Procede de sechage des bois de sciage et dispositif permettant la mise en oeuvre du procede |
US6675495B2 (en) | 1997-10-30 | 2004-01-13 | Valeurs Bois Industrie | Method for drying saw timber and device for implementing said method |
WO2000012230A1 (en) | 1998-09-02 | 2000-03-09 | Weyerhaeuser Company | Method for determining warp potential in wood |
US6293152B1 (en) | 1998-09-02 | 2001-09-25 | Weyerhaeuser Company | Method for determining twist potential in wood |
US6080978A (en) | 1998-09-28 | 2000-06-27 | Heatwave Drying Systems Ltd. | Dielectric drying kiln material handling system |
FI110891B (sv) * | 1999-02-22 | 2003-04-15 | Lahden Ammattikorkeakoulu | Förfarande och anordning för torkning och/eller värmebehandling av trämaterial |
IT1308940B1 (it) * | 1999-06-03 | 2002-01-15 | Adriano Martinelli | Dispositivo di essiccazione di sostanze alimentari, in particolarerotoballe di fieno |
US6124584A (en) * | 1999-06-18 | 2000-09-26 | Heatwave Drying Systems Inc | Moisture measurement control of wood in radio frequency dielectric processes |
DE19957775C1 (de) * | 1999-12-01 | 2000-07-13 | Wolfgang Vioel | Verfahren zur Modifizierung von Holzoberflächen durch elektrische Entladung unter Atmosphärendruck |
NL1015161C2 (nl) * | 2000-05-11 | 2001-11-13 | Npc Ind B V I O | Werkwijze voor het vervaardigen van duurzame producten. |
US6397488B1 (en) | 2000-06-15 | 2002-06-04 | Hewlett-Packard Company | Apparatus and method for drying printing composition on a print medium |
US6225612B1 (en) | 2000-07-07 | 2001-05-01 | Heatwave Drying Systems Ltd. | Electrode structure for dielectric heating |
FI20002085A0 (sv) * | 2000-09-21 | 2000-09-21 | Lahden Ammattikorkeakoulu | Förfarande och system för torkning av material |
US6317997B1 (en) | 2000-10-19 | 2001-11-20 | Heatwave Drying Systems Ltd | Vacuum port positioning for vacuum drying systems |
US6423955B1 (en) | 2001-07-13 | 2002-07-23 | Heatwave Technologies Inc. | High frequency dielectric heating system |
DE10137256A1 (de) * | 2001-07-31 | 2003-02-13 | Schotten & Hansen Gmbh | Verfahren zur Herstellung eines Brettes aus Massivholz |
WO2004070270A2 (en) * | 2003-02-04 | 2004-08-19 | Waco Construction Inc. | Kiln with process water evaporation system |
US7987614B2 (en) * | 2004-04-12 | 2011-08-02 | Erickson Robert W | Restraining device for reducing warp in lumber during drying |
EP1778909B1 (en) * | 2004-08-18 | 2010-04-14 | LG Electronics Inc. | Controlling methof for automatically drying |
NZ535897A (en) * | 2004-10-12 | 2007-02-23 | Crusader Engineering Ltd | Process and system for removal of solvent (such as light organic solvent preservative) from timber |
US7337554B2 (en) * | 2004-10-19 | 2008-03-04 | Robert William Erickson | Stability-kerfing of green lumber to obtain improvements in drying and future utilization |
NL1028081C2 (nl) * | 2005-01-21 | 2006-07-26 | Stichting Famecon | Werkwijze voor het drogen van hout. |
JP2008538730A (ja) * | 2005-02-22 | 2008-11-06 | マタースミスス テクノロジーズ リミテッド | 有機物質処理用組成物 |
US7963048B2 (en) * | 2005-05-23 | 2011-06-21 | Pollard Levi A | Dual path kiln |
FR2896033B1 (fr) * | 2006-01-10 | 2013-07-05 | Bio 3D Applic | Systeme et procede de sechage de bois. |
FI20070550L (sv) * | 2006-09-04 | 2008-03-05 | Reino Pendikainen | Förfarande och anläggning för torkning av trä |
JP5060791B2 (ja) * | 2007-01-26 | 2012-10-31 | 独立行政法人森林総合研究所 | 木材の乾燥方法、木材への薬剤浸透方法及び乾燥装置 |
US7886459B2 (en) * | 2007-03-08 | 2011-02-15 | John R. Ruess | Apparatus for assisting in fluid removal from fluid storage bladder and the like |
JP2010540276A (ja) * | 2007-09-28 | 2010-12-24 | ガイア ウッド パテント アクツイエセルスカプ | 一つ以上の電極を通して電磁線により木材を処理するための方法 |
US8201501B2 (en) * | 2009-09-04 | 2012-06-19 | Tinsley Douglas M | Dual path kiln improvement |
CN102069522A (zh) * | 2009-11-24 | 2011-05-25 | 张家港市博腾新型材料有限公司 | 用在微波真空干燥机上的压平装置 |
MY149935A (en) * | 2010-05-25 | 2013-10-31 | Forest Res Inst Malaysia | High-temperature lumber treatment system |
AT510290B1 (de) * | 2010-10-07 | 2012-03-15 | Hubert Ing Knoth | Einrichtung zum trocknen eines maschinenteils mit einer vakuumtrockenkammer |
US20120160840A1 (en) * | 2010-12-23 | 2012-06-28 | Eastman Chemical Company | Wood heater with alternating microwave launch locations and enhanced heating cycles |
EP2554347B1 (de) | 2011-08-02 | 2013-10-02 | Bimbo Holzwerk GmbH & Co. KG | Verfahren zum Herstellen von Holzelementen |
WO2013101646A1 (en) * | 2011-12-29 | 2013-07-04 | Eastman Chemical Company | Wood treatment method and apparatus employing laterally shiftable transportation segments |
WO2013101656A1 (en) * | 2011-12-29 | 2013-07-04 | Eastman Chemical Company | Wood treatment method and apparatus employing multiple vessels and multiple wood-transporting carts |
WO2013101649A1 (en) * | 2011-12-29 | 2013-07-04 | Eastman Chemical Company | Wood treatment method and apparatus employing detachable bundle support structure |
US20130168387A1 (en) * | 2011-12-29 | 2013-07-04 | Eastman Chemical Company | Wood treatment method and apparatus employing multiple vessels and multiple wood-transporting carts |
WO2013101651A1 (en) * | 2011-12-29 | 2013-07-04 | Eastman Chemical Company | Wood treatment method and apparatus employing vessel with bundle stabilization system |
WO2013154510A2 (en) * | 2012-04-11 | 2013-10-17 | Sivrikaya Recep | Advanced wood drying oven |
DE102012111892B4 (de) * | 2012-12-06 | 2016-04-28 | Christoph Grabolle | Vorrichtung zum Trocknen von Holz |
US9194625B2 (en) * | 2013-08-20 | 2015-11-24 | Whirlpool Corporation | Method for drying articles |
WO2016034713A1 (en) * | 2014-09-05 | 2016-03-10 | Titan Wood Limited | Improved wood treatment system and method for wood treatment |
US9958206B1 (en) * | 2014-12-19 | 2018-05-01 | Arron Duvall | Curing oven |
DK178526B1 (en) | 2015-03-05 | 2016-05-23 | Danish Wood Technology As | Method for Treatment of Wood |
US9845990B2 (en) * | 2015-05-01 | 2017-12-19 | Pacific Western Timbers, Inc. | Stacking support |
AU2017216557B2 (en) * | 2016-08-19 | 2019-05-16 | Howard Heritage Holdings Pty Ltd | Product and method |
US9927173B1 (en) * | 2016-09-26 | 2018-03-27 | Gary L. Kolari | Single pass continuous lumber drying kiln |
US10082335B2 (en) | 2016-09-26 | 2018-09-25 | American Wood Dryers, Llc | Single pass continuous lumber drying kiln |
US10898599B2 (en) * | 2016-12-27 | 2021-01-26 | The Penn State Research Foundation | Radio frequency treatment to phytosanitize wood packaging materials used in international shipping |
US10486329B2 (en) * | 2017-01-20 | 2019-11-26 | Chon Investment Holdings Limited | Methods and systems for impregnating wood with a polymer solution and products thereof |
US10619921B2 (en) | 2018-01-29 | 2020-04-14 | Norev Dpk, Llc | Dual path kiln and method of operating a dual path kiln to continuously dry lumber |
DK201800137A1 (en) | 2018-03-28 | 2019-10-02 | Danish Wood Technology A/S | Treatment of wood |
US11624557B2 (en) * | 2018-07-02 | 2023-04-11 | Green Mountain Mechanical Design, Inc. | Vacuum drying kilns and control systems therefore |
RU2692905C1 (ru) * | 2018-07-09 | 2019-06-28 | Федеральное Государственное Бюджетное Образовательное Учреждение Высшего Образования "Новосибирский Государственный Технический Университет" | Способ сушки древесины |
EP3643196A1 (en) * | 2018-10-25 | 2020-04-29 | Koninklijke Philips N.V. | Hair styling using dielectric heating |
CL2019001019A1 (es) * | 2019-04-15 | 2019-06-14 | Neumann S A | Sistema de secado de madera aserrada con circulación secundaria de aire. |
RU2713879C1 (ru) * | 2019-08-15 | 2020-02-10 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Кубанский государственный аграрный университет имени И.Т. Трубилина" | Устройство для сушки силовых трансформаторов в полевых условиях сельских электрических сетей |
CN112815671A (zh) * | 2020-12-31 | 2021-05-18 | 重庆美迪智能家居有限公司 | 一种木材烘干装置及其使用方法 |
CN113459234B (zh) * | 2021-07-08 | 2022-03-25 | 浙江省林业科学研究院 | 一种防霉竹材单元/竹制品的制备方法 |
CN115654845A (zh) * | 2022-10-31 | 2023-01-31 | 江苏南理范群装备科技有限公司 | 一种真空干燥机及其工作方法 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2231457A (en) * | 1936-08-03 | 1941-02-11 | John L Stephen | Electrical apparatus |
BE475232A (sv) * | 1941-12-27 | |||
US2387595A (en) * | 1943-08-02 | 1945-10-23 | Brunswick Balke Collender Co | Method and apparatus for drying lumber |
US2560763A (en) * | 1950-01-31 | 1951-07-17 | Allis Chalmers Mfg Co | Dielectric drier having an adjustable exhaust system |
-
1974
- 1974-01-01 AR AR255632A patent/AR204636A1/es active
- 1974-09-11 DE DE2443436A patent/DE2443436A1/de not_active Withdrawn
- 1974-09-13 FR FR7431044A patent/FR2244147B1/fr not_active Expired
- 1974-09-16 CA CA209,287A patent/CA1017414A/en not_active Expired
- 1974-09-16 PL PL1974174144A patent/PL94573B1/pl unknown
- 1974-09-16 DD DD181123A patent/DD119306A5/xx unknown
- 1974-09-16 NO NO743312A patent/NO141004C/no unknown
- 1974-09-16 DK DK485874A patent/DK485874A/da unknown
- 1974-09-16 FI FI2700/74A patent/FI58687C/fi active
- 1974-09-16 YU YU2509/74A patent/YU36812B/xx unknown
- 1974-09-16 OA OA55296A patent/OA04779A/xx unknown
- 1974-09-16 BR BR7698/74A patent/BR7407698D0/pt unknown
- 1974-09-16 SE SE7411628A patent/SE401260B/sv unknown
- 1974-09-16 ES ES430105A patent/ES430105A1/es not_active Expired
- 1974-09-17 NL NL7412308A patent/NL7412308A/xx not_active Application Discontinuation
- 1974-09-17 BE BE148633A patent/BE820032A/xx not_active IP Right Cessation
- 1974-09-17 PH PH16294A patent/PH11971A/en unknown
- 1974-09-17 GB GB4042974A patent/GB1470719A/en not_active Expired
- 1974-09-17 JP JP49107067A patent/JPS5076201A/ja active Pending
- 1974-09-17 HU HU74KO00002677A patent/HU172156B/hu unknown
- 1974-09-17 CH CH1258974A patent/CH580792A5/xx not_active IP Right Cessation
- 1974-09-17 IT IT27377/74A patent/IT1021457B/it active
- 1974-09-17 CS CS7400006380A patent/CS183760B2/cs unknown
- 1974-11-19 US US05/525,049 patent/US3986268A/en not_active Expired - Lifetime
-
1976
- 1976-06-05 ES ES448615A patent/ES448615A1/es not_active Expired
-
1982
- 1982-08-26 HK HK381/82A patent/HK38182A/xx unknown
-
1983
- 1983-12-30 MY MY5/83A patent/MY8300005A/xx unknown
Also Published As
Publication number | Publication date |
---|---|
DD119306A5 (sv) | 1976-04-12 |
NO141004B (no) | 1979-09-10 |
NL7412308A (nl) | 1975-03-19 |
PH11971A (en) | 1978-09-28 |
YU250974A (en) | 1981-11-13 |
US3986268A (en) | 1976-10-19 |
FI58687B (fi) | 1980-11-28 |
AR204636A1 (es) | 1976-02-20 |
FR2244147A1 (sv) | 1975-04-11 |
ES448615A1 (es) | 1977-07-01 |
DE2443436A1 (de) | 1975-03-27 |
MY8300005A (en) | 1983-12-31 |
GB1470719A (en) | 1977-04-21 |
CS183760B2 (en) | 1978-07-31 |
HK38182A (en) | 1982-09-03 |
BE820032A (fr) | 1975-03-17 |
OA04779A (fr) | 1980-08-31 |
SE401260B (sv) | 1978-04-24 |
HU172156B (hu) | 1978-06-28 |
FR2244147B1 (sv) | 1978-12-01 |
NO743312L (sv) | 1975-04-14 |
PL94573B1 (pl) | 1977-08-31 |
FI270074A (sv) | 1975-03-18 |
CH580792A5 (sv) | 1976-10-15 |
JPS5076201A (sv) | 1975-06-21 |
IT1021457B (it) | 1978-01-30 |
NO141004C (no) | 1979-12-19 |
BR7407698D0 (pt) | 1975-09-09 |
ES430105A1 (es) | 1977-01-16 |
YU36812B (en) | 1984-08-31 |
SE7411628L (sv) | 1975-03-18 |
DK485874A (sv) | 1975-05-12 |
CA1017414A (en) | 1977-09-13 |
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