Classifications

• • E—FIXED CONSTRUCTIONS
  • E04—BUILDING
  • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
  • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
  • E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
  • E04B1/20—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of concrete, e.g. reinforced concrete, or other stonelike material
• • E—FIXED CONSTRUCTIONS
  • E04—BUILDING
  • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
  • E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
  • E04B5/43—Floor structures of extraordinary design; Features relating to the elastic stability; Floor structures specially designed for resting on columns only, e.g. mushroom floors
• • E—FIXED CONSTRUCTIONS
  • E04—BUILDING
  • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
  • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
  • E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
  • E04B1/20—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of concrete, e.g. reinforced concrete, or other stonelike material
  • E04B1/21—Connections specially adapted therefor
  • E04B1/215—Connections specially adapted therefor comprising metallic plates or parts

Definitions

• the invention relates to a load-bearing horizontal struc ⁇ tural system for a building, the system consisting of load- bearing slabs or slab-like structures which constitute the frame of the said horizontal structure, and of support parts which transfer loads from these slabs to the load- bearing vertical frame and extend in the horizontal direc ⁇ tion from the cross sectional surface of any given vertical frame to the area of the slab.
• Uses for this horizontal structural system include intermediate floors, roofs and base floors of buildings.
• the load-bearing horizontal structures of a building con ⁇ stitute a major part of the frame of the building and thus • of the costs of the frame.
• the load-bearing horizontal structures are in general implemented by using massive slab systems, slab-beam combinations, such as the conventional, downstand beam or upstand beam systems or the structure depicted in publication DE 2 350 ' 437, or by using light ⁇ weight slab systems (hollow-core slab, ribbed slab, waffle slab, etc.).
• the conventional, and the most common, method of supporting the slab system is to build it on top of columns, walls, beams, or the like.
• mushroom structure also downstand exten ⁇ sion and reinforcement (so-called mushroom structure) is used in a mushroom slab structure, as in the conventional mushroom slab cast in situ or in the structure disclosed in publication GB-1 079 751, or reinforcement included in the slab thickness is used, as in publication DE-2 221 549, in order that the slab system at a moderate thickness should withstand loads without shearing at the pillar.
• the second object of the invention is to provide a horizontal structural system such as this, with as small as possible a structural height.
• the third object of the invention is to provide a horizontal structural system such as this, making it possible to in ⁇ crease its support span or correspondingly to reduce the structural thickness of the floor as compared with those currently used, and to use the structural height effective ⁇ ly, both structurally and for installations.
• the fourth object of the invention is to provide a horizontal struc- tural system such as this, which can be implemented either as a structure made in situ or as a prefabricated-component structure, is easy and rapid to implement, and makes it possible to produce structural entities of a plurality of different shapes.
• the fifth object of the invention is to provide a horizontal structural system such as this, which makes it possible to alter the installations easily at a later date, in which case the alteration work will focus only on the area to be altered.
• the sixth object of the invention is to provide a horizontal structural system such as this, in which the structural parts which transfer loads of the load-bearing slab to the vertical frame of the building are not visible, but all the visible surfaces are substantially smooth, in which case all the spaces between the load-bearing vertical structures are entirely in their full height available for use for other purposes. It is a further object of the invention to provide a horizontal structural system which is not restricted to any building material; thus the material may be reinforced concrete, a prestressed structure, a steel structure, a wooden struc ⁇ ture, a composite structure, or some combined structure.
• the system according to the invention makes it possible to install pipes and wiring, etc., between the formed twin structure in all directions without obstacle, and in this case alteration of the installations is also possible by focussing the alteration work only on the desired area, since the embedment floor can be easily removed and does not affect the structural strength.
• Figure 1 depicts a schematic plan view of the horizontal structural system according to the invention, sub-figures 1A-1D depicting different methods of implementing the sup ⁇ port part,
• Figure 2 depicts a side view of the structure shown in Figure 1C
• Figure 3 is a more detailed axonometric representation of the embodiment of Figure 1 .
• Figure 4A depicts a plan view of the embodiment of Figures 1A and 3 at the stage of the making of the embedment floor
• Figure 4B depicts the embodiment of Figure IB, slightly modified, at the stage of the installation of the embedment floor
• Figure 5 depicts a side view of the embodiment of Figure 4A, with examples of the embedment floor and installation
• Figure 6A depicts one embodiment according to Figure IB
• Figure 6B depicts a side view of the embodiment of Figure 4B
• Figure 7 is an axonometric representation of the embodiment of Figure 1C, as a prestressed construction
• Figure 8 depicts a plan view of the embodiment of Figure 7, slightly modified
• Figure 9 depicts a side view of the embodiment of Figure 8
• Figure 10 depicts a modification used in connection with the embodiment of Figure 1C
• Figure 11 depicts the horizontal structural system accord ⁇ ing to the invention, as a prefabricated-component struc ⁇ ture, as an example of the design of the component
• Figure 12 depicts a number of different designs of the horizontal component, usable in the horizontal structural system according to the invention
• Figure 13 depicts one variant of the component design in a horizontal structural system implemented using prefabri ⁇ cated components
• Figure 14 depicts schematically a horizontal structure obtained using another component design
• Figure 15 depicts in greater detail the component structure of Figure 11, applying the support-part arrangement of Figure 1C,
• Figures 16 and 17 depict side views of the structure of Figure 15 at the pillar, depicting certain methods of jointing a basic component according to the invention and an additional component,
• Figures 18 and 19 depict two other methods of jointing a basic component and an additional component
• Figures 20-22 depict a number of different possibilities of connecting a support part and a basic component
• Figure 23A-C depicts different designs of the joint situated in the basic component but belonging to the sup ⁇ port part
• Figure 24 depicts the steps of one method of making the joint between basic components or between a basic component and a support component
• Figure 25 depicts a plan view of a connecting joint between two basic components, or respectively between a basic com- ponent and an additional component, according to one method of making the joint,
• Figure 26 depicts the connecting joint of Figure 25 in the horizontal direction
• Figure 27 depicts one other cross sectional shape of the basic component and the additional component, and their jointing method.
• the intermediate-floor structure is a twin-layer structure which is made up of a load-bearing lower slab structure 1, usually serving as the ceiling of the lower space, an em ⁇ bedment floor 2, and a "mushroom-like" support part 4 built in the space 3 left between the slab structure and the embedment floor and located above the horizontal slab 1 and supporting it.
• the horizontal slab 1 and the embedment floor 2 constitute one visible horizontal structure of the building, the structure thus not being necessarily precise ⁇ ly horizontal, although that is usual; it can be moderately tilted from the horizontal plane but deviates crucially from the vertical or nearly vertical structural parts 5.
• Support parts 4 connect the horizontal slab 1 to the parts of the vertical frame 5 of the building, for example to pillars 6.
• FIGS 1A and 3, as well as 4A and 5, show support parts according to the invention which have been, for example, cast from concrete.
• the support part 4 has been cast either as one piece with the bearing vertical pillar 6 of the building frame, or they have been interconnected in a manner not shown, in which case the support part may constitute a vertical continuation part of the pillar or the respective wall.
• the support part 4 is in this example made up of four branches 7a-d of the type of a cantilever beam, the branches extending to a considerable distance from the vertical pillar 6 as compared with the transverse dimensions of the pillar.
• the load-bearing hori ⁇ zontal slab 1 is fastened to the lower surface 11 of the branches 7 of this support part 4, either over the entire surface or over part of it, to support the slab.
• This fas ⁇ tening is implemented specifically in the area of the ends 8a-d of the branches 7 or in their vicinity, for example by connecting within the branches of the concrete support part by means of parts 9a-d possibly belonging to its reinforce ⁇ ment, or by other methods known per se.
• the direction of the greatest strength of the reinforcement of the concrete is often oriented according to the main load, i.e.
• the reinforcements are oriented from the vicinity of the pillar 6 on the upper surface 10 of the support part in the vicinity of its ends 8a-d to the lower surface 11 of the support part, where they join the fastening points of the lower slab 1.
• the branch 7 may, of course, also have conventional concrete reinforcement, not shown in the figure, instead of parts 9.
• the reinforcement of this branch may be connected to the slab 1, or the branch 7 may be connected to the slab in some other manner.
• the effective support span of the slab 1 is reduced from the real distance Dl between the pillars to a value D2, which is the distance between the outermost sup ⁇ port points of the branches of the support part 4, i.e. between their ends 8a-d.
• D2 the distance between the outermost sup ⁇ port points of the branches of the support part 4, i.e. between their ends 8a-d.
• the support part 4 can also be made of concrete as a more massive, mushroom-like piece or as a prefabricated compo ⁇ nent, as shown in Figure ID.
• Figure IB for its part, shows a structure otherwise corresponding to Figure 1A, but in it the branches 7a-d of the support part are formed from, for example, steel, which may be, for example, an I-beam in the cross section of the branches, as shown from the side in Figure 6A, or a trestle or some other known steel profile.
• the fastening of the support part 4, shown in Figure 6A, to the horizontal slab 1 by means of members 14 extending downwards from the beam branches 7 and broadened at their lower ends, or similar members formed from sheet metal is well applicable to, for example, casting in situ. In this case, also, it is possible to make throughputs in the sup ⁇ port part branches, in the waist of the I-beam.
• FIGs 1C, 2 and 7-9 depict a very simple and versatile support arrangement.
• the support-part branches 7a-d are made of steel bars, steel cables or the like, extending in pairs from the vicinity of the outer surface of the support pillar 6 in opposite directions down to the hori ⁇ zontal slab 1, all of them being called tension bars 15 in this application.
• the tension bars 15 are suspended from the load-bearing vertical pillar 6 either to bear on pins 17, as shown in Figure 7, or to bear on notches 18 provided in the pillar 6, as shown in Figures 8 and 9, or in some other manner, not shown here.
• the tension bars 15 extend radially from the pillar 6 to inside the horizontal slab 1, where they attach to the horizontal slab in a manner appro ⁇ priate in each given case.
• the effective span between the pillars 6 decreases from the value Dl to D2, which is approximately the distance between the connection points 19 of the bars 15 and the horizontal slab 1.
• the implementation of installations is especially flexible, since they can be made almost with ⁇ out obstacle in the area of the tension bars 15 close to a pillar or the like.
• the support system according to the invention for the slab 1, implemented in this manner using tension bars 15, is especially advantageous in the sense that in that case the bars in question can be used for the preliminary raising and pre-tensioning of the slab and for the tightening of the tension bars, as well as, if the slab is a prefabri ⁇ cated component, for the adjustment of the height of the slab 1.
• This can be carried out, for example, by pressing in each pair of bars two adjacent bars 15 towards each other, for example at point 20 by means of a tightening means 21 not shown in greater detail.
• the necessary fire protection of the bars 15 is implemented by coating the bars 15 in a suitable manner and with a suitable material or by covering the surroundings of the bars with a concrete mix or the like 22, as shown in Figure 9.
• Figures 4B and 6B depict, as one alternative according to the invention, a combination of the systems according to Figures 1A, 4A, 5 and Figures 1C, 7-9, in which the branches 7a-d are formed towards the center, i.e. closer to the pillar 6, of concrete, for example, as in Figure 3, but from the upper edge 10 of the outer surface 8a-d of these concrete branches there extend obliquely downwards to the horizontal slab 1 support bars or cables or the like 23. In this case the support span of the slab 1 must be measured from point 24, which is at the meeting point of the said bar 23 and the horizontal slab 1.
• the bar 15 or 23 can further be continued beyond the.meeting point 19 or respec ⁇ tively 24 half-way between the pillars to below the slab 1, as shown in Figure 10. In this case there will be no actual fastening point for the bar 15 or 23 and the horizontal slab 1, but the member bearing the load will extend over the entire dimension of the slab. Likewise, the bar 23 may continue along the upper surface 10 of the branch 7 as far ⁇ as the pillar 6 or beyond it. Thus the entire horizontal slab can be brought to bear on a continuous "supporting network". This method is usable especially in repair con ⁇ struction for increasing the load-bearing capacity of old horizontal structures.
• an upstand support part 4 is, of course, not limited to the examples described above but can be formed in any manner, taking in to consideration that it supports the load-bearing slab 1 below it. In other words, the slab 1 is suspended to bear partly or entirely on the support part.
• the base slab may be dimensioned for carrying only its own weight, the installation load, and the other direct loads bearing on the base slab.
• the live load on an inter ⁇ mediate floor is supported and transferred to the horizon ⁇ tal slab by means of an embedment-floor structure which, having a short span, can thus be implemented economically, as described later in this application.
• the support part is described as having four branches, but according to the use involved, the branches 7 may number one, two, three, four, or more.
• the branches may be mutually symmetrical and protrude at regular angular distances, or they may be asymmetrical in location and/or in length. It is, however, advantageous to orient the branches 7 either in parallel to the pillar network or in particular obliquely to it, for example in parallel to the diagonal of the pillar network, as in Figure 1, or nearly diagonally, as in Figure 15. In the vicinity of the side walls the branches 7 can also be oriented diagonally, as in Figure 1, or in parallel to the wall, as in Figure 15, or in some other manner.
• the load-bearing vertical structures of the building may also be located asymmetrically.
• Figure 11 depicts one intermediate floor formed as a prefabricated-component structure by using the horizontal structural system according to the invention.
• This struc ⁇ ture is made of vertical pillars 6 and of basic components 25 suspended to bear on them through a support part accord ⁇ ing to the invention, not shown in this figure, since it can be of any embodiment, and of slab-like additional com ⁇ ponents 26 or other supplementary structures further dis ⁇ posed to bear on these basic components, whereby a horizon ⁇ tal structure 1 is formed.
• the slab com ⁇ ponent is in general located centrally on the pillar line, whereas in known prefabricated-component systems the joint between the slab components is in general on the pillar line.
• the component according to the invention can, when so desired, also be divided into two parts the joint of which is on the pillar line. Likewise, of the half-slabs only one can be used alone, for example, on the facade side.
• the support of the component can be implemented not only, in the manner described, to bear on pillars but also to bear on walls or other load-bearing structures.
• Figure 12 depicts different shapes of the basic components. The most advantageous of these is in general the hexagonal component depicted in point 12a, which, for example when installed in the space between pillars enables similar load-bearing components to be placed systematically in two directions in the spaces between the pillars, as shown in Figures 11 and 13.
• an empty space left between components can be filled in with components bearing on the said load-bearing basic components, for example using simple lightweight slab components 26 or by using other conventional construction methods, or openings, sky ⁇ lights, etc., between the storeys can be made in this intermediate space.
• a hexagonal basic component 25 When a hexagonal basic component 25 is used, it is possible to accomplish, by using one component type and a simple supplementary additional component, a clear structural system, capable of being implemented using only a few com ⁇ ponent types and making possible a smooth ceiling surface when, for example, the joint 40, 41 of the basic component and the additional component, according to Figures 16 and 17, is used.
• a desirable flexibility usually lacking in prefabricated-component systems is ob ⁇ tained in the said prefabricated component system for mul ⁇ tiform construction.
• a simple variant of the component is a rectangular component ( Figure 12b) or a component made perpendicular at only one end ( Figure 12b) .
• Figure 12b a simple horizontal structure 1 is obtained by using parallel basic slabs and supplementary additional slabs.
• Figure 12d in the basic structural alternative a conventional straight facade can well be implemented, as shown in Figure 11.
• the variants of the basic component can be implemented advan ⁇ tageously especially when their support is arranged in the area of the horizontal surface of the basic component. In this case the enlarging of the component is possible to a moderate degree also as a slab cantilever.
• the modified component can be easily manufactured in a compo ⁇ nent factory, when the size of the form table, battery form, or other formwork system is selected to have the shape of a rectangle of the dimensions of the basic compo ⁇ nent ( Figure 12d) , or preferably one of the forms is se ⁇ lected to be longer in case of possible cantilevers ex ⁇ tending beyond the pillar (for example Figure 12h or 12k).
• Figure 12d the size of the form table, battery form, or other formwork system
• one of the forms is se ⁇ lected to be longer in case of possible cantilevers ex ⁇ tending beyond the pillar (for example Figure 12h or 12k).
• the shaping can also be carried out by sawing the components from a piece implemented by continuous casting or by some other known method. By making the component ends round or into some other desired shape, highly imaginative shapes can be obtained for buildings.
• Figure 15 depicts an advantageous method according to the invention for suspending basic components 25 from pillars 6 by using bars 15.
• it is especially advan ⁇ tageous to situate in the slabs the suspension points 19, for example, within the pillarless corner areas 27 of the hexagonal basic component, for example at an angle of 45 degrees in relation to the slab's longitudinal axis, which is often the same as the pillar line.
• the bars 15 or other support parts may, of course, be parallel to the longitudinal direction of the basic component or perpendicular to it, as in point 28 next to a straight facade, or at some other angle.
• a suspension structure at an angle of 45 degrees to the longitudinal axis P of the slab is well suited for a hexa ⁇ gonal basic component type and enables variants of the slab to be made advantageously.
• At both ends of the basic compo ⁇ nent there are typically, for example, two suspension structures 15.1 and 15.3, 15.4 and 15.5, 15.6 and 15.7, 15.8 and 15.2.
• the adjacent suspension structures of the adjacent components 25a and 25b, 25b and 25c, 25c and 25d, 25d and 25a constitute one support part 4 for the final slab system.
• the branches of the support part 4 formed of the tension bars 15, are in the above- mentioned manner at an angle of 45 degrees, the tension bars in pairs will be continuations of each other, 15.2+15.1 and 15.5+15.6, 15.3+15.4 and 15.7+15.8, either straight, as at point 42 in Figure 15, or crossed, as at point 43 in Figure 15.
• the various parts of the sup ⁇ port parts of different components form the continuous support part 4 in the completed structure.
• the structure described has the further advantage that at the point in question the branches of the support part draw the basic components 25a, 25b, 25c, 25d towards one another and to ⁇ wards the upright pillar 6 in question, whereby the joints 44a, 44b, 44c, 44d between the components remain tightly closed.
• the component-specific suspension structures are shifted and/or increased according to need (for example, Figure 12h or 12k) .
• sus ⁇ pension structures can be placed also in the cantilever.
• the basic component can be made lighter outside the support part 4, for example, by means of openings 29 or thinnings 48, as shown in Figures 21 and 22, or in the area of the pillar 6 or some corresponding part of the vertical frame, in which case the basic component and the horizontal slab will become a freely suspended structure bearing on the support part.
• Suspension cables, bars, trestles, rib struc ⁇ tures or other support parts 4 according to the invention, or their fastening points 30, can be made fully ready in the prefabricated components, or the components may be provided with the necessary fastening parts, as shown in Figures 22 and 23a-c, for suspension taking place on site.
• the tightening/tensioning of the suspensions can be carried out, when necessary, by means of tightening adjust ⁇ ers such as bolts, nuts or clamping sleeves or by tighten ⁇ ing or tensioning the bars to one side, downwards or up- wards, as described earlier, or by other methods known per se.
• a support part installed in a component may also con ⁇ stitute only part of the final suspension support, in which case the tightening or tensioning part may, when necessary, be installed on site.
• Suspension support can be implemented in a manner advantageous in terms of prefabrication, for example, by installing in the component, with sufficient bonding, for example flat-welded bolts, gripping bars, a perforated or other such gripping profile, or by installing by other methods known per se, a fastening flange 30, an angle bar or some other known fastening part, or a notch, groove or similar recess, or a pin 31, hook or other such ⁇ like for purposes of fastening and/or suspending.
• sufficient bonding for example flat-welded bolts, gripping bars, a perforated or other such gripping profile, or by installing by other methods known per se, a fastening flange 30, an angle bar or some other known fastening part, or a notch, groove or similar recess, or a pin 31, hook or other such ⁇ like for purposes of fastening and/or suspending.
• the fastening part may, when necessary, serve at the same time as a hoisting hook during transport or installation of the component.
• the suspension fastening made in the component may also be a round bar, ribbed bar, flat bar or some other kind of bar, for example a cable which is provided with anchoring steels or other anchoring parts and is cast into the component.
• the suspension part 4 may be provided with extension and/or tightening members 21.
• the compo ⁇ nents may be fastened to one other in such a manner that the joint will serve as an articulation or in a torque- rigid manner.
• the fastening and stiffening can be effected by welding the steel fasteners in the joint area to each other by using, when necessary, a flat bar or some other additional bar.
• the stiffening can also be effected by making in the components a tubular recess 32, 33, in which' there is installed a steel tube or steel bar 34 which dur ⁇ ing the installation of the components is in the groove 33 of one component 25 and is pushed after the installation of the components to extend into the groove 32 of the other so that it will couple, for example, components 25a and 25b to each other.
• This joint is, when necessary, stiffened by casting or injecting with a mix 45 which fills any remain ⁇ ing gaps.
• the stiffening can also be carried out by bolt ⁇ ing, by grouting by using the recesses made in the compo ⁇ nents, reinforcement bars installed in the components and, when necessary, additional reinforcement bars and/or a fiber-reinforced concrete mix, or by other methods known per se.
• One method of stiffening prefabricated-component structures is to make in the component a dovetail or other recess 35 by using, for example a metal-sheet or other casing 46 which is provided with the necessary bars 47 which provide bond and prevent cracking.
• the recess may also be a steel part or a bolt notch.
• the slab component may also be part of the final slab structure.
• the slab system may be made by casting a strengthening and/or stiffening in- situ layer with possible additional reinforcement bars on top of the components, which will at the same time act as a mold and possibly constitute part of the reinforcement, or the whole reinforcement.
• the intermediate- floor structure may or may not contain an embedment floor structure.
• the additional components supplementing the basic compo ⁇ nents may be relatively lightweight massive slabs, light ⁇ weight slabs such as hollow-core slabs, or other slab-like structures known per se.
• Figures 16 and 17 depict two dif ⁇ ferent ways of connecting an additional component 26 to the basic component 25 by means of a joint 40 and respectively 41.
• a smooth ceiling surface is obtained for the lower storey, and the largest possible space 3 is obtained between the embedment floor 2 of the upper storey and the horizontal slab 1.
• the additional component 26 may also be placed on top of the basic component 25, as shown in Figures 18 and 19. In this case, however, not only a smooth ceiling but also an embed ⁇ ment space inside the intermediate floor is lost.
• the structure of the embedment floor 2 may be of any type known per se, but preferably of a type which has an adjust ⁇ able height, can be detached in parts, and is provided with recesses for pipes, cables and other installations. It is also possible, when so desired, to embed in the basic com ⁇ ponent and/or the additional component pipes or cables or the like and/or throughputs or recesses for them. A further possibility is to make base-floor and intermediate-floor components from the horizontal slab 1 or part of it, for example a basic component 25 and/or an additional component 26, and from the embedment floor 2, such base-floor or intermediate-floor components containing both the slab 1 and the embedment floor 2, as well as the support part 4, as well as to make roof components equipped with a roof structure corresponding to the embedment floor 2. Thus a high degree of prefabrication is achieved while all the advantages of the invention are gained.
• the horizontal slab 1 may also be at an angle, for example the angle of slope of the roof, in rela ⁇ tion to the horizontal plane.
• the structural material of the slabs and the support part may be of any material or any combination of materials otherwise suitable for the purpose.

Landscapes

• Engineering & Computer Science (AREA)
• Architecture (AREA)
• Physics & Mathematics (AREA)
• Electromagnetism (AREA)
• Civil Engineering (AREA)
• Structural Engineering (AREA)
• Buildings Adapted To Withstand Abnormal External Influences (AREA)
• Joining Of Building Structures In Genera (AREA)

Priority Applications (1)

Applications Claiming Priority (6)

Publications (2)

Family

ID=27241248

Family Applications (1)

Country Status (6)

Families Citing this family (3)

Family Cites Families (7)

• 1988
  • 1988-11-11 AT AT88910040T patent/ATE78542T1/de not_active IP Right Cessation
  • 1988-11-11 WO PCT/FI1988/000183 patent/WO1989004405A1/en active IP Right Grant
  • 1988-11-11 DE DE8888910040T patent/DE3873096T2/de not_active Expired - Lifetime
  • 1988-11-11 EP EP88910040A patent/EP0393091B1/de not_active Expired - Lifetime
  • 1988-11-11 AU AU27204/88A patent/AU2720488A/en not_active Abandoned
• 1989
  • 1989-07-11 SE SE8902513A patent/SE462989B/sv not_active IP Right Cessation

Non-Patent Citations (1)

Also Published As

Similar Documents

Legal Events