CN102416668B - Mixer axis for dual axis concrete mixer, and dual axis concrete mixer - Google Patents
Mixer axis for dual axis concrete mixer, and dual axis concrete mixer Download PDFInfo
- Publication number
- CN102416668B CN102416668B CN201110273729.2A CN201110273729A CN102416668B CN 102416668 B CN102416668 B CN 102416668B CN 201110273729 A CN201110273729 A CN 201110273729A CN 102416668 B CN102416668 B CN 102416668B
- Authority
- CN
- China
- Prior art keywords
- shaft
- fastening point
- mixer
- attached
- stirring vane
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
- B28C5/10—Mixing in containers not actuated to effect the mixing
- B28C5/12—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers
- B28C5/14—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers the stirrers having motion about a horizontal or substantially horizontal axis
- B28C5/146—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers the stirrers having motion about a horizontal or substantially horizontal axis with several stirrers with parallel shafts in one container
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/05—Stirrers
- B01F27/07—Stirrers characterised by their mounting on the shaft
- B01F27/071—Fixing of the stirrer to the shaft
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/05—Stirrers
- B01F27/07—Stirrers characterised by their mounting on the shaft
- B01F27/072—Stirrers characterised by their mounting on the shaft characterised by the disposition of the stirrers with respect to the rotating axis
- B01F27/0723—Stirrers characterised by their mounting on the shaft characterised by the disposition of the stirrers with respect to the rotating axis oblique with respect to the rotating axis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/05—Stirrers
- B01F27/07—Stirrers characterised by their mounting on the shaft
- B01F27/072—Stirrers characterised by their mounting on the shaft characterised by the disposition of the stirrers with respect to the rotating axis
- B01F27/0724—Stirrers characterised by their mounting on the shaft characterised by the disposition of the stirrers with respect to the rotating axis directly mounted on the rotating axis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/05—Stirrers
- B01F27/11—Stirrers characterised by the configuration of the stirrers
- B01F27/114—Helically shaped stirrers, i.e. stirrers comprising a helically shaped band or helically shaped band sections
- B01F27/1144—Helically shaped stirrers, i.e. stirrers comprising a helically shaped band or helically shaped band sections with a plurality of blades following a helical path on a shaft or a blade support
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/60—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis
- B01F27/70—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with paddles, blades or arms
- B01F27/701—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with paddles, blades or arms comprising two or more shafts, e.g. in consecutive mixing chambers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/60—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis
- B01F27/70—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with paddles, blades or arms
- B01F27/701—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with paddles, blades or arms comprising two or more shafts, e.g. in consecutive mixing chambers
- B01F27/702—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with paddles, blades or arms comprising two or more shafts, e.g. in consecutive mixing chambers with intermeshing paddles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
- B28C5/10—Mixing in containers not actuated to effect the mixing
- B28C5/12—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers
- B28C5/14—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers the stirrers having motion about a horizontal or substantially horizontal axis
- B28C5/148—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers the stirrers having motion about a horizontal or substantially horizontal axis the stirrer shaft carrying a plurality of radially extending mixing bars
Abstract
A mixing axis (1, 2) of a dual axis mixer for concrete mix, said mixing axis comprising several mixer elements attached to the mixing axis, said mixer elements including a mixing shaft (3) protruding substantially radially from the mixing axis, and at least one mixer blade (4) attached to the outer end of the mixing shaft, so that on that section of the mixing axis (1, 2) of the dual axis mixer that is located in the mixing tank, mixer elements are attached at nine successive mixer element fastening points (A-I), so that in the first, second and last fastening point (A, B and I), the total area of the mixer blades (4, 4') connected to a single fastening point is substantially four times as large as the total area of the mixer blades (4) connected to a single fastening point in the third, fourth, sixth and eighth fastening point (C, D, F and H). The invention also relates to a dual axis mixer provided with a described mixing axis.
Description
Technical field
The present invention relates to the shaft of a kind of biaxial rneader using in the production of concrete-agitating material, and a kind of biaxial rneader that is provided with this shaft.More specifically, the present invention relates to be arranged in location and the quantity of the agitating element on this shaft.
Background technology
The equipment using in the production of concrete-agitating material is biaxial rneader, in biaxial rneader, by means of the agitating device that is attached to two axles that comprise in agitator tank, the concrete-agitating material that produce is stirred, and shaft is flatly arranged in agitator tank.Conventionally, the agitating device that is attached to shaft comprises being secured to the puddler of shaft and being attached to and stirs the stirring vane of rod end, described puddler from shaft substantially along radially outstanding.
Compared with the mixing effect that utilizes traditional single-shaft stirring machine to obtain, utilize biaxial rneader, the mixing effect obtaining in the concrete-agitating material that will produce is conventionally better and more effective, this means by using biaxial rneader, can produce more quickly the concrete-agitating material of larger quantity.
The most basic object in the development of concrete mixer that comprises biaxial rneader is the faster production process for concrete-agitating material, and the ability that improves mixer by concrete-agitating material is more effectively stirred has realized described object.In the production of the concrete-agitating material of the mixing time that requires more to grow, stir in the production of material such as polymer especially, described object is even more important.Utilize biaxial rneader, the rotating speed of having attempted the shaft by increasing mixer reaches described object.
Summary of the invention
According in the solution of the present invention, by increasing the number of the agitating element in mixer, by changing the shape of agitating element and by described agitating element being positioned to the increase that has realized the ability of biaxial rneader on shaft.
According in the solution of the present invention, compared with traditional arrangement, increased the number of the agitating element that is attached to shaft, be attached to shaft puddler number and be coupled to the number of stirring vane of described puddler.And, realize the increase of agitating element at the specific fastening point place of described agitating element, and similarly increased the number of the blade that is attached to single puddler.
According in the solution of the present invention, in that part of agitator tank shaft, that be arranged in biaxial rneader, agitating element is attached at nine agitating element fastening point places in succession, thereby at first, second and last fastening point place, the gross area that is connected to the stirring vane of the agitating element of single fastening point is that be connected to four times of the gross area of the stirring vane of single fastening point at the 3rd, the 4th, the 6th and the 8th fastening point place large substantially.
According to a preferred embodiment of the present invention, at least the first shaft and advantageously also in that part at agitator tank the second shaft, that be arranged in biaxial rneader, connect 14 agitating elements at nine different fastening point places.
According in the solution of the present invention, stirring vane is attached to the puddler of shaft, and this attachment location also makes the stirring vane of the puddler being attached in the first two fastening point of the first end of the first shaft trend towards making the concrete that will stir to be further shifted away from the first end of the first shaft.Remaining stirring vane that is attached to the first shaft by means of puddler trends towards making the concrete that will stir to be shifted towards the described first end of the first shaft.With respect to the first shaft, the position of the stirring vane of the second shaft of mixer is contrary.
The test of carrying out according to this biaxial rneader of the application of the invention, compared with traditional biaxial rneader, ability has realized about 60% rising, and compared with traditional scheme, the increase of the power that agitating element consumes is only about 15%.
More specifically, shaft according to the present invention has the feature proposing in the characteristic of claim 1, and biaxial rneader according to the present invention has the feature proposing in the characteristic of claim 7.
Accompanying drawing explanation
By example, the present invention is described in further detail with reference to accompanying drawing below, wherein
Figure 1A show in three-dimensional isometric view, see according to the shaft of biaxial rneader of the present invention,
Figure 1B shows from the shaft of the biaxial rneader of the viewed Figure 1A in below, and
Fig. 1 C shows the shaft of the biaxial rneader of viewed Figure 1A from the side.
The specific embodiment
The shaft of the biaxial rneader illustrating is in the drawings included in two adjacent shafts 1 and 2 of flatly locating in the agitator tank of mixer, and described shaft extends through the end surfaces of the agitator tank of mixer.In shaft those parts 1 and 2, that be arranged in agitator tank, attached some agitating elements, each in described agitating element includes from shaft along radially outstanding puddler 3 and the first attached stirring vane 4 the region of the outer end of puddler.In addition, a part for puddler 3 is arranged to be connected with the first stirring vane 4, also be arranged in addition be connected with the second stirring vane 4 ', described the second stirring vane is disposed in the space reserving between the first stirring vane and shaft, thereby stirring vane covers the whole length substantially of puddler.
In the solution of the present invention illustrating in the drawings, puddler 3 is attached to nine different fastening point A-I that are positioned on shaft 1 and 2, in Fig. 1 C, can see best described fastening point.From Fig. 1 C, also see that, in shaft 2, the order of the fastening point of shaft 1 is reversed.At some fastening point place, except the first puddler 3, also attached the second puddler 3 ' to extend along contrary direction from shaft 1 and 2 with respect to the first puddler.
At the fastening point A of shaft 1 and 2 and the two place of B, be attached with two puddlers directed in opposite directions 3,3 ', each in described puddler is equipped with two stirring vanes 4,4 '.Be attached to the agitating element of described fastening point A and B and in particular stirring vane 4,4 ' be positioned such that: along with shaft rotation, described stirring vane is shifted substantially away from the edge of agitator tank the concrete that will stir, and wherein said fastening point A and B are positioned near the edge of agitator tank of mixer.
Each place in fastening point C and the D of shaft 1 and 2, an attached only puddler 3, described puddler 3 is provided with a stirring vane 4 at outer end place.The stirring vane that is positioned at the agitating element at fastening point C-I place is all positioned such that: along with shaft rotation, they make concrete-agitating material be shifted to contrary substantially direction with respect to the stirring vane of the agitating element of fastening point A and B.
At the fastening point E place of shaft 1 and 2, attached two puddlers directed in opposite directions 3,3 ', each in described puddler is all provided with a stirring vane 4 at outer end place.
At the fastening point F place of shaft 1 and 2, an attached puddler 3, described puddler is provided with a stirring vane 4 at outer end place.
At the fastening point G place of shaft 1 and 2, attached two puddlers directed in opposite directions 3,3 ', each in described puddler is all provided with a stirring vane 4 at outer end place.
At the fastening point H place of shaft 1 and 2, an attached puddler 3, described puddler is provided with a stirring vane 4 at outer end place.
At the fastening point I place of shaft 1 and 2, attached two puddlers directed in opposite directions 3,3 ', each in described bar is equipped with two stirring vanes 4,4 '.
Therefore, according to the present invention and in the example illustrating in the drawings, for each in the shaft 1,2 of biaxial rneader, all at nine attached 14 agitating elements in different agitating element fastening point A-I places.
About the embodiments of the invention that illustrate in the drawings, it should be noted that because the agitating element of shaft 1 and 2 by the arranged in order with reverse each other, so they also rotate along opposite directions.In example in the drawings, the shaft of rotating shaft 1 turns clockwise, and the shaft of rotating shaft 2 is rotated counterclockwise.
In the layout of describing according to the present invention, at fastening point A, B and I place, stirring vane 4,4 ' the gross area that is connected to each independent fastening point is that be connected to four times of the gross area of the stirring vane of each independent fastening point at fastening point C, D, F and H place large.And at fastening point E and G place, the gross area that is connected to the stirring vane of two independent fastening point is that be connected to the twice of the gross area of the stirring vane of each independent fastening point at fastening point C, D, F or H place large.
Illustrate in the drawings according in the solution of the present invention, the mutual angle of the puddler in succession 3 on the cross section of shaft is 60 degree, this rod that advantageously has a hexagonal cross-section by use is achieved as the axle of shaft 1,2.
In addition, advantageously 30 degree of the mutual phase shift between the first shaft 1 and the second shaft 2.
At puddler 3 places, stirring vane with respect to direction of rotation with respect to advantageously 35 degree of angle of the cross section of shaft 1,2.
According to by using the test of carrying out according to biaxial rneader of the present invention, compared with traditional biaxial rneader, ability has realized about 60% rising, and compared with traditional layout, the increase of the power that agitating element consumes is only about 15%.
Claims (8)
1. the shaft of a double-axle concrete-mixer (1,2), described shaft comprises the multiple agitating elements that are attached to shaft, described agitating element comprises puddler (3) and at least one stirring vane (4), wherein said puddler (3) from described shaft substantially along radially outstanding, described stirring vane (4) is attached to the outer end of described puddler
It is characterized in that,
In shaft those parts (1,2), that be arranged in agitator tank of described biaxial rneader, agitating element is attached at nine agitating element fastening point (A-I) in succession and locates, thereby in first, second and last fastening point (A, B and I), the gross area that is connected to the stirring vane (4,4 ') of single fastening point is that in the 3rd, the 4th, the 6th and the 8th fastening point (C, D, F and H), to be connected to four times of the gross area of the stirring vane (4) of single fastening point large substantially.
2. according to the shaft of claim 1 (1,2), it is characterized in that,
Locate in the 5th and the 7th fastening point (E and G), upper in described shaft those parts (1,2), that be arranged in described agitator tank, the gross area that is connected to the stirring vane (4) of single fastening point is that to locate to be connected to the twice of the gross area of the stirring vane (4) of single fastening point in the 3rd, the 4th, the 6th and the 8th fastening point (C, D, F and H) large substantially.
3. according to the shaft (1,2) of claim 1 or 2, it is characterized in that,
The number that is attached at that a part of agitating element of the described shaft (1,2) being positioned in the described part that is arranged in described agitator tank is 14.
4. according to the shaft of claim 1, it is characterized in that,
In described shaft those a part of first end location (1,2), that be arranged in described agitator tank, each place in described two the first fastening point and locating in the last fastening point (A, B and I) of described agitating element, is positioned with two agitating elements that extend round about.
5. according to the shaft of claim 1 (1,2), it is characterized in that,
At each place of the 5th and the 7th agitating element fastening point (E and G) of described shaft those parts (1,2), that be arranged in described agitator tank, be positioned with two agitating elements that extend round about.
6. according to the shaft of claim 2 (1,2), it is characterized in that,
Be attached to two the first agitating element fastening point (A and B) of described shaft those parts (1,2), that be arranged in described agitator tank and/or the agitating element of last agitating element fastening point (I) and comprise two the adjacent stirring vanes (4,4') that are attached to same puddler (3,3'), described adjacent stirring vane covers the whole length of described puddler substantially.
7. a double-axle concrete-mixer, is characterized in that,
Described biaxial rneader is provided with at least one according to the shaft of claim 1 to 6 (1,2).
8. according to the biaxial rneader of claim 7, it is characterized in that,
Described biaxial rneader be provided with two adjacent according to the shaft of claim 1 to 6 (1,2), thereby the part of agitating element adjacent shaft, that be arranged in agitator tank is put with reverse each other order on shaft.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI20105937 | 2010-09-09 | ||
| FI20105937A FI122572B (en) | 2010-09-09 | 2010-09-09 | Concrete mixing double axis mixer shaft and concrete mixing double axis mixer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102416668A CN102416668A (en) | 2012-04-18 |
| CN102416668B true CN102416668B (en) | 2014-06-11 |
Family
ID=42829673
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110273729.2A Expired - Fee Related CN102416668B (en) | 2010-09-09 | 2011-09-09 | Mixer axis for dual axis concrete mixer, and dual axis concrete mixer |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP2428341B1 (en) |
| CN (1) | CN102416668B (en) |
| ES (1) | ES2518090T3 (en) |
| FI (1) | FI122572B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104589502A (en) * | 2015-01-23 | 2015-05-06 | 长安大学 | Double-horizontal-shaft continuous stirrer with oppositely arranged inner and outer stirring units |
| CN104608241B (en) * | 2015-01-27 | 2017-01-25 | 长安大学 | Double horizontal shaft continuous stirrer and stirring and controlling method thereof |
| US11389775B2 (en) * | 2016-04-25 | 2022-07-19 | Young Ho Bok | Stirrer comprising two rotating shafts having intersecting stirring blades capable of rotating symmetrically and rotating in identical direction and stirring method |
| CN106079091B (en) * | 2016-08-18 | 2019-02-05 | 许昌德通振动搅拌技术有限公司 | Double-horizontal-shaft crossed recursion continuous vibration stirring device |
| CN108221559B (en) * | 2017-12-28 | 2020-08-25 | 警通建设（集团）有限公司 | Asphalt mixing plant |
| CN112023815B (en) * | 2020-08-21 | 2022-06-07 | 湖南中联重科混凝土机械站类设备有限公司 | Stirring device and stirrer |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2030463A (en) * | 1978-09-21 | 1980-04-10 | Risco Brevetti | Mixer for meat and food products in general |
| WO2001085322A1 (en) * | 2000-05-05 | 2001-11-15 | Ammann Aufbereitung Ag | Two-shaft compulsory mixer, use of the two-shaft compulsory mixer and method for operating a two-shaft compulsory mixer |
| CN201239995Y (en) * | 2008-07-29 | 2009-05-20 | 韶关市天源重机有限公司 | Energy-saving double-horizontal shaft forced concrete mixer |
| CN201505984U (en) * | 2009-10-09 | 2010-06-16 | 邵克文 | Continuous double horizontal shaft concrete mixer |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101323149A (en) * | 2007-06-14 | 2008-12-17 | 福建南方路面机械有限公司 | Forced action mixer with adjustable stirring unit |
| CN201552667U (en) * | 2009-10-21 | 2010-08-18 | 长沙中联重工科技发展股份有限公司 | Double-horizontal-shaft single ribbon concrete mixer |
-
2010
- 2010-09-09 FI FI20105937A patent/FI122572B/en not_active IP Right Cessation
-
2011
- 2011-08-30 EP EP11179361.8A patent/EP2428341B1/en not_active Not-in-force
- 2011-08-30 ES ES11179361.8T patent/ES2518090T3/en active Active
- 2011-09-09 CN CN201110273729.2A patent/CN102416668B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2030463A (en) * | 1978-09-21 | 1980-04-10 | Risco Brevetti | Mixer for meat and food products in general |
| WO2001085322A1 (en) * | 2000-05-05 | 2001-11-15 | Ammann Aufbereitung Ag | Two-shaft compulsory mixer, use of the two-shaft compulsory mixer and method for operating a two-shaft compulsory mixer |
| CN1452509A (en) * | 2000-05-05 | 2003-10-29 | 安曼加工股份公司 | Two-shaft compulsory mixer, Use of said mixer and method for operating same |
| CN201239995Y (en) * | 2008-07-29 | 2009-05-20 | 韶关市天源重机有限公司 | Energy-saving double-horizontal shaft forced concrete mixer |
| CN201505984U (en) * | 2009-10-09 | 2010-06-16 | 邵克文 | Continuous double horizontal shaft concrete mixer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102416668A (en) | 2012-04-18 |
| FI122572B (en) | 2012-03-30 |
| ES2518090T3 (en) | 2014-11-04 |
| EP2428341B1 (en) | 2014-10-01 |
| EP2428341A3 (en) | 2014-04-16 |
| EP2428341A2 (en) | 2012-03-14 |
| FI20105937A0 (en) | 2010-09-09 |
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Address after: Finland toijala Applicant after: Elematic Oy Ab Address before: Finland toijala Applicant before: Elematic Group OY |
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