CN209323744U - A kind of materials for wall filling energy filled with phase transformation - Google Patents
A kind of materials for wall filling energy filled with phase transformation Download PDFInfo
- Publication number
- CN209323744U CN209323744U CN201821888460.2U CN201821888460U CN209323744U CN 209323744 U CN209323744 U CN 209323744U CN 201821888460 U CN201821888460 U CN 201821888460U CN 209323744 U CN209323744 U CN 209323744U
- Authority
- CN
- China
- Prior art keywords
- layer
- proof
- fire
- sound
- wall
- 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.)
- Active
Links
Landscapes
- Building Environments (AREA)
- Laminated Bodies (AREA)
Abstract
The utility model discloses a kind of materials for walls that energy is filled filled with phase transformation, its structure includes wall, ergosphere and fire-proof and damp-proof layer are filled in sound-absorbing phase transformation, a kind of materials for wall filling energy filled with phase transformation of the utility model, its advantages are, it must not play the role of fire-proof and damp-proof for solution, lead to the problem of the practicability is poor, by being provided with fire-proof and damp-proof layer, fire proof sealing strip plays the role of sealing and fireproof, and meeting fire can expand, play flame retardant effect, fire-resistance pressure resistance gypsic horizon has excellent fire-resistance and crushing resistance, and the above gas impact of moment 1200pa can be born, aluminium foil damp-proof layer can effectively play shockproof, waterproof, it is moisture-proof, it is dust-proof, nontoxic and environmentally friendly effect, rubber and plastic cotton layer is conducive to play the role of damping to wall, macromolecule damping layer plays the role of decoupling weakening, fire-proof and damp-proof work can be played by having reached With increasing the beneficial effect of the practicability used.
Description
Technical field
The utility model relates to materials for wall technical fields, and in particular to a kind of materials for wall that energy is filled filled with phase transformation.
Background technique
Materials for wall can effectively reduce environmental pollution, save a large amount of production cost, increase house usable floor area etc. one
Number of advantages has the characteristics that light, heat-insulated, sound insulation, heat preservation wherein quite most kind belongs to green building material, some
Material has been even up to fireproof function, and with the rapid development of science and technology, the materials for wall for filling energy filled with phase transformation also obtains
Technological improvement is arrived, but the prior art can not carry out sound-absorbing to wall and phase transformation is filled and can be acted on, and causes interior a riot of sound, no
It can play the role of fire-proof and damp-proof, lead to that the practicability is poor.
Utility model content
(1) technical problems to be solved
In order to overcome the shortage of prior art, it is proposed that a kind of materials for wall that energy is filled filled with phase transformation, to solve existing skill
Art can not carry out sound-absorbing to wall and phase transformation is filled and can be acted on, and causes interior a riot of sound, cannot play the role of fire-proof and damp-proof, cause
The problem of the practicability is poor, having reached can fill and can act on to wall progress sound-absorbing and phase transformation, and enabled volume will not be noisy, and increase makes
The comfort of user can play the role of fire-proof and damp-proof, increase the beneficial effect of the practicability used.
(2) technical solution
The utility model is achieved through the following technical solutions: the utility model proposes a kind of walls that energy is filled filled with phase transformation
Body material, including wall, sound-absorbing phase transformation fill ergosphere and fire-proof and damp-proof layer, and the sound-absorbing phase transformation is filled before ergosphere is located at wall inside
End, and carry out with wall interior forward end it is be bonded, the sound-absorbing phase transformation fill ergosphere carried out with fire-proof and damp-proof layer front end it is be bonded, it is described
Fire-proof and damp-proof layer carried out with wall Internal back end it is be bonded, the sound-absorbing phase transformation fill ergosphere include polyester fiber sound absorbing layer, sound-absorbing cloth,
Sound absorption wedge layer, diffuser abatvoix, voice guide hole and phase-change energy-storage mortar layer, the polyester fiber sound absorbing layer are located inside wall
Front end, and carry out with wall interior forward end be bonded, polyester fiber sound absorbing layer upper end is provided with voice guide hole, and the polyester is fine
Dimension sound absorbing layer is sutured with sound-absorbing cloth bottom, the polyester fiber sound absorbing layer and sound absorption wedge layer top carry out it is be bonded, it is described
Right rear end is bonded with diffuser abatvoix at the top of sound absorption wedge layer, carries out at the top of the sound absorption wedge layer and phase-change energy-storage mortar layer
Bonding, the fire-proof and damp-proof layer includes fire proof sealing strip, fire-resistance pressure resistance gypsic horizon, magnesium crystalline substance fire protection flame retarding layer, aluminium foil damp-proof layer, rubber
It moulds cotton layer and macromolecule damping layer, the fire-resistance pressure resistance gypsic horizon carries out be bonded, the fire proof sealing strip with wall Internal back end
It carries out with fire-resistance pressure resistance gypsic horizon top rear be bonded, is glued at the top of the fire-resistance pressure resistance gypsic horizon and magnesium crystalline substance fire protection flame retarding layer
It connects, the aluminium foil damp-proof layer is located at magnesium crystalline substance fire protection flame retarding layer bottom, and, the aluminium foil Nian Jie with magnesium crystalline substance fire protection flame retarding layer bottom
Damp-proof layer and rubber and plastic cotton layer top carry out be bonded, and the rubber and plastic cotton layer carries out be bonded with macromolecule damping layer top.
Further, the fire proof sealing strip is provided with two altogether, and fire proof sealing strip is along fire-resistance pressure resistance gypsic horizon top
Portion rear and front end is uniformly distributed, conducive to playing the role of carrying out fire proof seal.
Further, the quantity of the diffuser abatvoix is greater than 2, and is uniformly distributed at the top of sound absorption wedge layer,
Sound wave is absorbed conducive to playing.
Further, it is provided with sound-absorption hole at the top of the sound absorption wedge layer, and sound-absorption hole is in cylindrical structure, is conducive to
Play the role of carrying out sound-absorbing, and increases sound-absorbing efficiency.
Further, the quantity of the voice guide hole is greater than 2, and uniform along polyester fiber sound absorbing layer top horizontal direction
Distribution conducive to playing the role of carrying out leading note, and increases leading note efficiency.
Further, the macromolecule damping layer is in rectangular parallelepiped structure, and the rear end of macromolecule damping layer is 2cm, benefit
In play the role of carry out damping.
Further, the polyester fiber sound absorbing layer is Polyester Fibers, is conducive to sound-absorption and heat-insulation and keeps the temperature.
Further, the macromolecule damping layer is damping material, conducive to playing the role of carrying out decoupling weakening.
(3) beneficial effect
The utility model compared with the existing technology, has the advantages that
1), to solve wall progress sound-absorbing and phase transformation be filled and can be acted on, lead to indoor a riot of sound problem, pass through
It is provided with sound-absorbing phase transformation and fills ergosphere, polyester fiber sound absorbing layer is in cocoon cotton shape, realizes that biomass diversity ensures to divulge information, can be effective
Decrease sound wave, while sound-absorbing cloth has fairly good inhibiting effect to low frequency and high-frequency sound, can effectively inhibit various vibrations
Dynamic propagation, and conducted remaining sound wave to sound absorption wedge layer upper end, sound absorption wedge layer sound absorption wedge pair by voice guide hole
The absorption of low frequency is more effective, can eliminate standing wave, absorb to sound wave, subsequent diffuser abatvoix can skiving stress, cut
Weak high pitch, declines sound wave amount, and phase-change energy-storage mortar layer can effectively absorb outdoor heat, outdoor heat is prevented to be passed to room
Interior, having reached can fill and can act on to wall progress sound-absorbing and phase transformation, and enabled volume will not be noisy, increases the comfort of user
Beneficial effect.
2) fire-proof and damp-proof, must not be played the role of for solution, lead to the problem of the practicability is poor, by being provided with fire-proof and damp-proof
Layer, fire proof sealing strip plays the role of sealing and fireproof, and meets fire and can expand, and plays flame retardant effect, fire-resistance pressure resistance gypsic horizon
With excellent fire-resistance and crushing resistance, and the above gas impact of moment 1200pa can be born, magnesium crystalline substance fire protection flame retarding layer is with day
Right inorganic mineral is main material, and A grades of fire protection flame retarding, E grades of burst size of methanal, non-toxic and tasteless, Moisture-proof water-resistant, aluminium foil damp-proof layer can have
Effect plays shockproof, waterproof, moisture-proof, dust-proof, nontoxic and environmentally friendly effect, and rubber and plastic cotton layer is conducive to play wall in the work of damping
With macromolecule damping layer plays the role of decoupling weakening, and fire-proof and damp-proof can be played by having reached, and increase the practicability used
Beneficial effect.
Detailed description of the invention
Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, other spies of the utility model
Sign, objects and advantages will become more apparent upon:
Fig. 1 is the structural schematic diagram of the utility model;
Fig. 2 is that ergosphere schematic diagram of internal structure is filled in the sound-absorbing phase transformation of the utility model;
Fig. 3 is the fire-proof and damp-proof layer schematic diagram of internal structure of the utility model.
In figure: wall -1, sound-absorbing phase transformation fill ergosphere -2, fire-proof and damp-proof layer -3, polyester fiber sound absorbing layer -201, sound-absorbing cloth -
202, sound absorption wedge layer -203, diffuser abatvoix -204, voice guide hole -205, phase-change energy-storage mortar layer -206, fire proof sealing strip -
301, fire-resistance pressure resistance gypsic horizon -302, magnesium crystalline substance fire protection flame retarding layer -303, aluminium foil damp-proof layer -304, rubber and plastic cotton layer -305, macromolecule
Damping layer -306.
Specific embodiment
In the technical program:
Ergosphere 2, fire-proof and damp-proof layer 3, polyester fiber sound absorbing layer 201, sound-absorbing cloth 202, sound absorption wedge layer are filled in sound-absorbing phase transformation
203, diffuser abatvoix 204, voice guide hole 205, phase-change energy-storage mortar layer 206, fire proof sealing strip 301, fire-resistance pressure resistance gypsic horizon
302, magnesium crystalline substance fire protection flame retarding layer 303, aluminium foil damp-proof layer 304, rubber and plastic cotton layer 305 and macromolecule damping layer 306 are the utility model
Contain the innovative component of essence.
Wall 1 is to realize the essential connectivity component of technical solutions of the utility model.
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
Fig. 1, Fig. 2 and Fig. 3 are please referred to, the utility model provides a kind of materials for wall that energy is filled filled with phase transformation: including wall
Body 1, sound-absorbing phase transformation fill ergosphere 2 and fire-proof and damp-proof layer 3, and sound-absorbing phase transformation fills ergosphere 2 and is located at 1 interior forward end of wall, and with wall 1
Interior forward end is bonded, and sound-absorbing phase transformation fills ergosphere 2 and carries out be bonded, fire-proof and damp-proof layer 3 and wall 1 with 3 front end of fire-proof and damp-proof layer
Internal back end is bonded, and it includes polyester fiber sound absorbing layer 201, sound-absorbing cloth 202, sound absorption wedge layer that ergosphere 2 is filled in sound-absorbing phase transformation
203, diffuser abatvoix 204, voice guide hole 205 and phase-change energy-storage mortar layer 206, polyester fiber sound absorbing layer 201 are located in wall 1
Portion front end, and carry out with 1 interior forward end of wall be bonded, 201 upper end of polyester fiber sound absorbing layer is provided with voice guide hole 205, polyester
Fiber sound absorbing layer 201 is sutured with 202 bottom of sound-absorbing cloth, is carried out at the top of polyester fiber sound absorbing layer 201 and sound absorption wedge layer 203
Bonding, 203 top right rear end of sound absorption wedge layer are bonded with diffuser abatvoix 204, sound absorption wedge layer 203 and phase-change energy-storage mortar
206 top of layer is bonded, and fire-proof and damp-proof layer 3 includes fire proof sealing strip 301, fire-resistance pressure resistance gypsic horizon 302, magnesium crystalline substance fire protection flame retarding
Layer 303, aluminium foil damp-proof layer 304, rubber and plastic cotton layer 305 and macromolecule damping layer 306, inside fire-resistance pressure resistance gypsic horizon 302 and wall 1
Rear end is bonded, and fire proof sealing strip 301 carries out be bonded, fire-resistance pressure resistance gypsic horizon with 302 top rear of fire-resistance pressure resistance gypsic horizon
302 is be bonded with carrying out at the top of magnesium crystalline substance fire protection flame retarding layer 303, and aluminium foil damp-proof layer 304 is located at 303 bottom of magnesium crystalline substance fire protection flame retarding layer, and
And it is Nian Jie with magnesium crystalline substance fire protection flame retarding 303 bottom of layer, aluminium foil damp-proof layer 304 carries out be bonded, rubber and plastic cotton layer with 305 top of rubber and plastic cotton layer
305 is be bonded with carrying out at the top of macromolecule damping layer 306.
Wherein, the fire proof sealing strip 301 is provided with two altogether, and fire proof sealing strip 301 is along fire-resistance pressure resistance gypsic horizon
302 tops rear and front end are uniformly distributed, conducive to playing the role of carrying out fire proof seal.
Wherein, the quantity of the diffuser abatvoix 204 is greater than 2, and uniformly divides along 203 top of sound absorption wedge layer
Cloth absorbs sound wave conducive to playing.
Wherein, it is provided with sound-absorption hole at the top of the sound absorption wedge layer 203, and sound-absorption hole is in cylindrical structure, is conducive to
Play the role of carrying out sound-absorbing, and increases sound-absorbing efficiency.
Wherein, the quantity of the voice guide hole 205 is greater than 2, and equal along 201 top horizontal direction of polyester fiber sound absorbing layer
Even distribution conducive to playing the role of carrying out leading note, and increases leading note efficiency.
Wherein, the macromolecule damping layer 306 is in rectangular parallelepiped structure, and the rear end of macromolecule damping layer 306 is 2cm,
Conducive to play the role of carry out damping.
Wherein, the polyester fiber sound absorbing layer 201 is Polyester Fibers, is conducive to sound-absorption and heat-insulation and keeps the temperature.
Wherein, the macromolecule damping layer 306 is damping material, conducive to playing the role of carrying out decoupling weakening.
Sound absorption wedge layer 203 described in this patent is a kind of special soundabsorbing textured material for the field that absorbs sound by force, using more
The molding cutting of permeability (or fibroid) material, makes tapered or wedgelike sound absorber, strong indeformable, sound absorption wedge is suitable for
Air blast environment, main object is high quality anechoic room, more effective to the absorption of low frequency, can eliminate standing wave, reach and prevent back
The requirement of sound, low cutoff frequency acoustic absorptivity are greater than 0.99, the V-type made of polyester, W type sound absorption wedge and common wedge absorber
It is more reasonable compared to having the characteristics that occupy price small in size;201 full name of polyester fiber sound absorbing layer is that polyester fiber decoration is inhaled
Soundboard, be it is a kind of using polyester fiber and glass fiber as raw material through hot press molding made of have both the material of sound absorption function.
Working principle: wall 1 fills ergosphere 2 to sound-absorbing phase transformation and fire-proof and damp-proof layer 3 plays the role of protection, when having in room
When sound wave generates, sound wave diffuses to 201 upper end of polyester fiber sound absorbing layer first, and polyester fiber sound absorbing layer 201 is in cocoon cotton shape, real
Existing biomass diversity ensures to divulge information, and can effectively weaken sound wave, while sound-absorbing cloth 202 has quite low frequency and high-frequency sound
Good inhibiting effect, can effectively inhibit the propagation of various vibrations, and conduct remaining sound wave to suction by voice guide hole 205
203 upper end of sound wedge layer, 203 sound absorption wedge of sound absorption wedge layer is more effective to the absorption of low frequency, can eliminate standing wave, to sound wave into
Row absorb, subsequent diffuser abatvoix 204 can skiving stress, weaken high pitch, make sound wave amount decline, phase-change energy-storage mortar layer
206 can effectively absorb outdoor heat, prevent the incoming interior of outdoor heat;By being provided with fire-proof and damp-proof layer 3, fire proof seal
Item 301 plays the role of sealing and fireproof, and meets fire and can expand, and plays flame retardant effect, and fire-resistance pressure resistance gypsic horizon 302 has excellent
Good fire-resistance and crushing resistance, and the above gas impact of moment 1200pa can be born, magnesium crystalline substance fire protection flame retarding layer 303 is with natural nothing
Machine mineral are main material, and A grades of fire protection flame retarding, E grades of burst size of methanal, non-toxic and tasteless, Moisture-proof water-resistant, aluminium foil damp-proof layer 304 can have
Effect plays shockproof, waterproof, moisture-proof, dust-proof, nontoxic and environmentally friendly effect, and rubber and plastic cotton layer 305 is conducive to play damping to wall 1
Effect, macromolecule damping layer 306 play the role of decoupling weakening.
The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above, for
For those skilled in the art, it is clear that the present invention is not limited to the details of the above exemplary embodiments, and without departing substantially from this
In the case where the spirit or essential attributes of utility model, the utility model can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the utility model is by institute
Attached claim rather than above description limit, it is intended that will fall within the meaning and scope of the equivalent elements of the claims
All changes are embraced therein.It should not treat any reference in the claims as limiting related right
It is required that.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (6)
1. a kind of materials for wall for filling energy filled with phase transformation, including wall (1), it is characterised in that: further include that energy is filled in sound-absorbing phase transformation
Layer (2) and fire-proof and damp-proof layer (3), the sound-absorbing phase transformation fill ergosphere (2) and are located at wall (1) interior forward end, and interior with wall (1)
Portion front end is bonded, and the sound-absorbing phase transformation fills ergosphere (2) and carries out be bonded, the fire-proof and damp-proof with fire-proof and damp-proof layer (3) front end
Layer (3) carried out with wall (1) Internal back end it is be bonded, the sound-absorbing phase transformation fill ergosphere (2) include polyester fiber sound absorbing layer (201),
Sound-absorbing cloth (202), sound absorption wedge layer (203), diffuser abatvoix (204), voice guide hole (205) and phase-change energy-storage mortar layer
(206), the polyester fiber sound absorbing layer (201) is located at wall (1) interior forward end, and is glued with wall (1) interior forward end
It connects, polyester fiber sound absorbing layer (201) upper end is provided with voice guide hole (205), the polyester fiber sound absorbing layer (201) and sound-absorbing
Cloth (202) bottom is sutured, carried out at the top of the polyester fiber sound absorbing layer (201) and sound absorption wedge layer (203) it is be bonded, it is described
Right rear end is bonded with diffuser abatvoix (204) at the top of sound absorption wedge layer (203), and the sound absorption wedge layer (203) and phase transformation are stored up
It can be bonded at the top of screed (206), the fire-proof and damp-proof layer (3) includes fire proof sealing strip (301), fire-resistance pressure resistance gypsic horizon
(302), magnesium crystalline substance fire protection flame retarding layer (303), aluminium foil damp-proof layer (304), rubber and plastic cotton layer (305) and macromolecule damping layer (306), institute
It states fire-resistance pressure resistance gypsic horizon (302) and carries out be bonded, the fire proof sealing strip (301) and fire-resistance pressure resistance with wall (1) Internal back end
Gypsic horizon (302) top rear is bonded, at the top of the fire-resistance pressure resistance gypsic horizon (302) and magnesium crystalline substance fire protection flame retarding layer (303)
Be bonded, the aluminium foil damp-proof layer (304) is located at magnesium crystalline substance fire protection flame retarding layer (303) bottom, and with magnesium crystalline substance fire protection flame retarding layer
(303) bottom is bonded, and be bonded, the rubber and plastic cotton layer is carried out at the top of the aluminium foil damp-proof layer (304) and rubber and plastic cotton layer (305)
(305) be bonded with being carried out at the top of macromolecule damping layer (306).
2. a kind of materials for wall for filling energy filled with phase transformation according to claim 1, it is characterised in that: the fire proof seal
Item (301) is provided with two altogether, and fire proof sealing strip (301) is uniform along rear and front end at the top of fire-resistance pressure resistance gypsic horizon (302)
Distribution.
3. a kind of materials for wall for filling energy filled with phase transformation according to claim 1, it is characterised in that: the diffuser is inhaled
The quantity of soundboard (204) is greater than 2, and is uniformly distributed at the top of sound absorption wedge layer (203).
4. a kind of materials for wall for filling energy filled with phase transformation according to claim 1, it is characterised in that: the sound absorption wedge
It is provided with sound-absorption hole at the top of layer (203), and sound-absorption hole is in cylindrical structure.
5. a kind of materials for wall for filling energy filled with phase transformation according to claim 1, it is characterised in that: the voice guide hole
(205) quantity is greater than 2, and is uniformly distributed along polyester fiber sound absorbing layer (201) top horizontal direction.
6. a kind of materials for wall for filling energy filled with phase transformation according to claim 1, it is characterised in that: the macromolecule resistance
Buddhist nun's layer (306) is in rectangular parallelepiped structure, and the rear end of macromolecule damping layer (306) is 2cm.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201821888460.2U CN209323744U (en) | 2018-11-16 | 2018-11-16 | A kind of materials for wall filling energy filled with phase transformation |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201821888460.2U CN209323744U (en) | 2018-11-16 | 2018-11-16 | A kind of materials for wall filling energy filled with phase transformation |
Publications (1)
Publication Number | Publication Date |
---|---|
CN209323744U true CN209323744U (en) | 2019-08-30 |
Family
ID=67710465
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201821888460.2U Active CN209323744U (en) | 2018-11-16 | 2018-11-16 | A kind of materials for wall filling energy filled with phase transformation |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN209323744U (en) |
-
2018
- 2018-11-16 CN CN201821888460.2U patent/CN209323744U/en active Active
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN205421620U (en) | Soundproof wall | |
CN201128991Y (en) | Polyester fibre acoustic panel | |
CN207259433U (en) | A kind of shockproof foam rubber | |
CN109537764A (en) | A kind of filling with light material wood plastic wall material | |
CN209323744U (en) | A kind of materials for wall filling energy filled with phase transformation | |
CN214531304U (en) | Effectual energy-conserving building wall body gives sound insulation | |
CN205225007U (en) | A inhale sound tide gate for music hall | |
CN202380940U (en) | Wood soundproof door | |
CN211396088U (en) | Sound insulation and noise reduction structure for indoor wall | |
CN206289793U (en) | A kind of good building wall board of soundproof effect | |
CN210216796U (en) | A wall body that gives sound insulation for green building | |
CN208844867U (en) | A kind of gypsum line of improved environmental-friendly construction material | |
CN209323746U (en) | A kind of steel assembled materials for wall of glass | |
CN206289549U (en) | Outdoor composite sound absorbing module | |
CN209723475U (en) | A kind of alluminium decorating plate of absorbing sound and lowering noise | |
CN205382585U (en) | Fire -proof thermal insulation plate | |
CN211518734U (en) | Aluminum foil fiber low-frequency sound absorption soft package | |
CN205349178U (en) | Thermal insulation door plate | |
CN209603324U (en) | Multiple rows of hole concrete panel of built-in sound insulating material | |
CN209305108U (en) | A kind of fire-retardant sound insulation environmental protection type veneer board | |
CN208914684U (en) | A kind of sliceable simple metal covering hard polyaminoester battenboard | |
CN209145046U (en) | A kind of Acoustic barrier plate structure | |
CN208293806U (en) | A kind of novel architecture thermal-insulating type composite plate | |
CN206436588U (en) | A kind of environmental protection flame retardant makrolon composite board | |
CN105479858B (en) | Enhanced heat-preservation, fireproof and sound-insulation composite environment-friendly plate with multilayer structure |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
GR01 | Patent grant | ||
GR01 | Patent grant |