EP3454684A1 - Disposable faceshield and proceeding for produce the same - Google Patents
Disposable faceshield and proceeding for produce the sameInfo
- Publication number
- EP3454684A1 EP3454684A1 EP17796489.7A EP17796489A EP3454684A1 EP 3454684 A1 EP3454684 A1 EP 3454684A1 EP 17796489 A EP17796489 A EP 17796489A EP 3454684 A1 EP3454684 A1 EP 3454684A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- faceshield
- patient
- mouth
- protection
- intended
- 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.)
- Pending
Links
Classifications
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
- A41D13/05—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches protecting only a particular body part
- A41D13/11—Protective face masks, e.g. for surgical use, or for use in foul atmospheres
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
- A41D13/05—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches protecting only a particular body part
- A41D13/11—Protective face masks, e.g. for surgical use, or for use in foul atmospheres
- A41D13/1107—Protective face masks, e.g. for surgical use, or for use in foul atmospheres characterised by their shape
- A41D13/113—Protective face masks, e.g. for surgical use, or for use in foul atmospheres characterised by their shape with a vertical fold or weld
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
- A41D13/05—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches protecting only a particular body part
- A41D13/11—Protective face masks, e.g. for surgical use, or for use in foul atmospheres
- A41D13/1161—Means for fastening to the user's head
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
- A41D13/05—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches protecting only a particular body part
- A41D13/11—Protective face masks, e.g. for surgical use, or for use in foul atmospheres
- A41D13/1161—Means for fastening to the user's head
- A41D13/1169—Means for fastening to the user's head using adhesive
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
- A41D13/05—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches protecting only a particular body part
- A41D13/11—Protective face masks, e.g. for surgical use, or for use in foul atmospheres
- A41D13/1184—Protective face masks, e.g. for surgical use, or for use in foul atmospheres with protection for the eyes, e.g. using shield or visor
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D2400/00—Functions or special features of garments
- A41D2400/52—Disposable
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C5/00—Filling or capping teeth
- A61C5/90—Oral protectors for use during treatment, e.g. lip or mouth protectors
Definitions
- the present invention concerns on one hand a disposable faceshield to be used in patient treatment for protection against splash to patients and as
- a disposable faceshield to be used in dental treatment for protection against splash to patients and in other treatments, and which covers face, hair, beard, and neck of the patient in question and having openings for mouth and breathing openings,
- US 2003/0015205 Al concerns a moisture- retaining mask (10) provided with a number of ventilation holes (21) , slits (16) , one on each side of the mask, (according to Fig. 1) for applying the mask around the person's ears by forming ear ribbons (17). (Refer to Fig. 4) . However, only one ribbon (17) for each ear.
- the main object of the present invention is primarily to solve among others the above said problems effectively and easily without needing to mix a plurality of materials and that the protection fits several sizes of faces, and to find a proceeding which enables efficient manufacture of the protection,
- the faceshield is formed of a cloth of a liquid repellent and at least some transparent material, such as polypropylene nonwoven or another hydrophobic material, that two or more notches,
- the faceshield having a lower chase which is formed so that it exposes the mouth of the patient in closed as well as open position, and that the faceshield is formed of material pieces in pairs, formed and joined in optional order, of a common material,
- the faceshield is formed of a cloth of liquid repellent and at least some translucent material, such as polypropylene nonwoven or another hydrophobic material, and that two or more arc-shaped notches, perforations, or provisions for the breakthrough of the material at the area of the patient's intended ear location on the respective side portions of the faceshield are distributed at mutual distance from each other as seen from the front portion of the faceshield toward the rear portion thereof and are arranged to enable leading-through of the ears in provided ear-receiving openings,
- ear-receiving openings is enabled at desired distance from the nose, as seen when the faceshield is in extended, flat state, so that it is stretched over the upper lip of the patient at desired, selected recesses, or that it is undertaken to punch and weld together paired or bundled material pieces of cloth material of a liquid repellent and at least some transparent material, such as polypropylene, nonwoven or another hydrophobic material to a common faceshield so that two or more notches,
- perforations, or indications of fracture are formed at the area of the patient's intended ear location on the side portions of the faceshield on each side of a central welding line of the faceshield, so that leading- through of the ears in provided ear-receiving openings is enabled at the proper distance from the nose.
- Figs. 1-10 show a first example of a faceshield and proceeding for producing the same
- Figs. 11-18 show a second example of a faceshield and proceeding for producing the same, wherein
- Figs. 1 and 2 respectively, show the faceshield in active state in extended, attached state on a patient where the patient keeps the mouth in closed and in open, respectively, position,
- Fig. 3 shows the faceshield in extended state on a substratum
- Fig. 4 shows the faceshield in folded storage state, as seen from one side thereof
- Fig. 5 shows the faceshield in folded storage state, as seen from the opposite side thereof
- Fig. 6 shows faceshield arranged in a web
- Figs. 7 and 8 respectively, show front views of a faceshield with a clearly shown nose-receiving portion and ear attachment means
- Figs. 9 and 10 respectively, show variant of faceshield having an arranged fold-forming nose- receiving part in extended utilization state on a patient and in folded storage state, respectively
- Fig. 11 shows a view from above of a material web with a faceshield punched therein with a shown folded half faceshield
- Fig. 12 shows an entirely unfolded shown faceshield in a flat state on a substratum
- Fig. 13 shows the faceshield with tear indications punched therein for ear openings and tie.
- Fig. 14 shows a silhouette picture of a human head having marked distance measures between the person's maxilla and ear
- Fig. 15 shows a planar view of a
- Fig. 16 shows a further shape-adapted example of faceshield illustrated how it has been placed from the front on a patient's face and loosely has been formed according to the shape of the face and head,
- Fig. 17 shows fabrication punch and welding set for faceshield
- Fig. 18 shows a web having tear-off faceshields in a row.
- a faceshield 1 which is disposable and intended to be used in dental treatment for protection against splash to patients 2 and as protection against entire or parts of objects in all kinds of oral dental treatments, and which covers face 3, eyes 4, nostrils 5, and cheeks 6 of a patient 2 in question and which is provided with opening 7 for mouth 9, is formed according to the present invention of a cloth 11, which consists of liquid repellent and at least some diaphanous material, such as polypropylene nonwoven or another hydrophobic material. Furthermore, two or more notches, perforations, or provisions 12 for the breakthrough of the material of the faceshield 1 at the area of the patient ' s intended ear location on the respective mutually opposite side portions 13, 14 of the faceshield are arranged for enabling
- the entire faceshield 1 is manufactured of identical material and formed of two punched, or otherwise suitably formed, e.g. cut out or sawn, joined protection parts 13, 14 having mutually meeting edges 11A, 11B with welding seam 17, seam, or another joint extending along the central and folding line 18 of the faceshield.
- the faceshield 1 is shaped according to anthropometric face measures, whereby it is arranged to fit most facial and head sizes. Markings S, M, L, and XL, respectively, may in that connection be made for ear lead- throughs .
- the protection 1 may also be manufactured in different sizes such as small, medium, large, and extra large.
- the material of the faceshield possesses a net structure, so that it similar to a dense lattice protects against strong light from lamps and is non-poisonous and is also environmental-friendly recyclable, even if the faceshields 1 after use are treated as dangerous
- the faceshield 1 may also be manufactured of a combination of translucent and opaque materials and by sterilizing the faceshield 1, it can be made available to be used for such interventions that require such a treatment .
- the faceshield 1 is formed so that there is plenty of room around the openings 5 of the nose 22, whereby the respiration during the treatment of the patient 2 is facilitated.
- the faceshield 1 is also formed so that there is plenty of room over the eyes 4 of the patient 2, whereby spectacles without hindrance can be carried by the patient 2 during the treatment when the faceshield 1 covers the face 3.
- Neither long eyelashes cause problems since they have room under the faceshield 1 at the area 10 over the eyes 4 without they hitting the faceshield 1 from inside.
- the faceshield 1 is anatomically and anthropometrically shaped to be able to fit most shapes and sizes of faces, and the protection is stretched between the ears 15 of the patient when it is fastened around the ears 15 by means of properly selected fitting recesses 12 in the faceshield 1 with suitable pressure over the upper lip 24 of the patient. Furthermore, the faceshield 1 may, along upper and/or side portions of the mouth opening 7 be provided with glue or another adhesion agent to additionally secure fastening thereto, if desirable .
- faceshields 1 are carried on roll in a line as shown in Fig. 6 with perforations 30 therebetween, or in bundle. Alternatively, they may be packed piece by piece.
- the faceshield 1 is open rearward, and therefore the patient 2 does not need to raise their head from the dental chair to be able to place the faceshield 1 over the head, but the faceshield 1 can easily be placed over the face 3 from the front and be fastened by sticking through the ears 15 into fitting recesses 12 on the respective side portions 13, 14 of the faceshield when the patient 2 conveniently is seated/lying in the chair.
- a proceeding for the manufacture of a said faceshield 1, which is disposable and intended to be used in oral dental treatment at dentists and dental hygienists against splash to patients 2 and also in other treatments as protection against entire or parts of objects in all kinds of oral fluid-suppliable dental treatments, and which is arranged to cover face 3, eyes 4, nostrils 5, and cheeks 6 of the patient 2 in question and which is provided with opening 7 for mouth 9 of the patient 2 is provided in the following manner:
- Paired or bundled material pieces 19, 20 of cloth material of liquid repellent and at least some diaphanous material, such as polypropylene nonwoven or another hydrophobic material, are punched or in another way formed and joined for the formation of a common faceshield 1, so that two or more preferably arc-shaped notches, perforations, or indications of fracture 12 are formed at the area of the patient ' s intended ear location on the side portions 13, 14 of the faceshield on each side of a central seam, welding line, or another joint 17 along a common central, folding, and limiting line 18 of the faceshield 1, so that insertion of the ears 15 in provided ear-receiving openings is enabled at properly desired, selected distance A from the nose 22 and the mouth 9 of the patient 2, as seen when the faceshield 1 is in extended, flat state, so that it is stretched over the upper lip 24 of the patient at properly selected recesses 12.
- paired punched, cut out, sawn, or otherwise formed material pieces 19, 20, or doubled material pieces are transported to a machine for joining, not shown, for joining by, e.g., needlework in a sewing machine or for welding using ultrasonic or heated tool welding for the formation of intended faceshields 1.
- the order of forming and joining may be varied.
- Transverse perforating dies, not shown, are arranged to limit the intended length extension of the respective faceshield for tearing off intended weakened portions 30.
- Figs. 3-4 the faceshield 1 is shown in unfolded state and folded state, respectively, with, in that connection, material piece 50 shown punched off along the mouth and nose side of the faceshield in unfolded and doubled, respectively, state from the original full width of the material web.
- Adhesion agent may be arranged to be applied around the opening of a mouth 9 and that release paper is applied to said adhesion agent.
- two, e.g. 20 cm x 30 cm large sheets of, e.g., polypropylene nonwoven are joined, by being sewn, welded, or connected to each other in another suitable manner, along the intended folding line 18 thereof and forming joint 17 in a way so that they
- the product is provided, preferably at the same time as the joining is carried out, with cuts or chases 12, for ears 15, and a mouth 9. This in order to, in various ways, guarantee the comfort of the patient and the dental staff's possibility of working without
- the cuts 12 for the ears 15 may be straight or curved. They are two or more in number and are situated at such a distance A from the centre of the upper lip that patients of different head sizes always have a dimension fitting cut 12 to pass over a respective ear 15 and which are placed at such a distance from the centre of the product that the protection is located stretched over the upper lip 24 between the ears 15. This in order to fast and conveniently be able to attach the faceshield 1 over the face 3 of the patient so that it stays in place and affords the dental staff a problem- free treatment
- a nose-receiving tucked part 23 is formed at the area along said central joint 17 of the faceshield 1 so that the nose 22 of the patient 2 can be received therein without hindrance, and that the patient 2 can breathe through the material of the protection 1.
- a tucked centre folding 70 is formed along the projectable intermediate portion of the faceshield 101, although said alternative is more cumbersome to manufacture.
- the faceshield 1 is normally kept in place only by means of said ear cuts 12.
- the back side of the mouth opening may, as has been described above, be provided with an adhesive run, etc., to be able to attach closely around the mouth along the upper lip 24 of the patient and/or sides of the mouth. If so, release paper is applied in the production but is then removed before application to the patient .
- the product may be provided with prints in the form of coloured fields of patterns or letters, on one hand to give nice aesthetics and on the other hand to give instructions to the user about how the product should be used .
- the product may either be given a shape that fits most faces and where the different cuts for the ears work as size adjustments, or it may be manufactured in different sizes for differently large faces.
- the product may also be manufactured of a combination of translucent material over the eyes and an opaque material along mouth and sides or the opposite. However, both materials should be of the same chemical structure to facilitate recycling of the faceshield after use .
- the raw material consists of, for instance,
- polypropylene nonwoven or another hydrophobic material 20 cm wide rolls of, e.g., polypropylene nonwoven or another hydrophobic material .
- Polypropylene is suitable due to its strength and stretchability.
- Other materials, such as PLA-coated, very thin paper may also work.
- the product may be manufactured in many different ways. Either it is sewn or else is welded together by means of a combination of, e.g., ultrasonic welding and punching, so-called rotation punching with ultrasound wherein each product is cut and welded in desired sequence.
- the method also allows that the products can be manufactured in long strips 60. Perforations 30 in upper and lower edge make it possible to tear off one, or several faceshields 1 and allows thereby package on roll.
- the product may also be manufactured by several layers of material being punched by a punching mould and that then two parts are sewn or that they, e.g., are heat-welded together by means of a welding tool. It is possible to start manufacturing using the latter method and then change to the first one when the sales volumes increase.
- the product is formed to maximize
- the only movable mouth part of the head is the jaw 61 and it is allowed to be opened and closed without hindrance and is not stopped by the protection.
- Laterally positioned cheek and neck protections 62 protects in that connection the patient 2 along said body parts. Should liquid after all run down along, e.g., the cheeks of the patient it is possible to solve this by means of applicable, loose, additionally liquid-sucking protections, however not shown.
- a faceshield 101 which is disposable and intended to be used in dental treatment for protection against splash to patients 102 and in other treatments, and which covers face 103, hair 104, and also beard 105, and neck 106 of a patient in question and which is provided with openings 107, 108 for mouth 109 and
- breathing openings 110 is formed according to the present invention of a cloth 111, which consists of liquid
- repellent and at least some translucent material such as polypropylene nonwoven or another hydrophobic material. Furthermore, two or more notches, perforations, or
- provisions 112 for the breakthrough of the material of the faceshield 101 at the area of the patient's intended ear location on the respective mutually opposite side portions 113, 114 of the faceshield are arranged to enable leading- through, i.e., insertion of the ears 115 in provided forming ear-receiving openings in said provisions 112.
- cut-throughs 116A may, as supplementing fastening means 116, be formed in the cloth 111 in the rear portion thereof, for the formation of paired ties.
- patient's intended ear leading-through are preferably arc- shaped and which are distributed at mutual distance X from each other, as seen from the central, front portion of the faceshield toward the laterally positioned rear portion thereof .
- the entire faceshield 101 is manufactured of a common material and formed of two punched and welded- together protection parts 113, 114 having mutually meeting edges 111A, 111B with the welding seam 117 extending along the central and folding line 118 of the faceshield.
- the faceshield 101 is shaped according to anthropometric face measures, whereby it is arranged to fit all facial and head sizes. Markings S, M, L may in that connection be made for ear lead-throughs . It may also be manufactured in different sizes such as small, medium, large, and extra large.
- the material of the faceshield possesses a net structure, so that it protects against strong light from lamps and is entirely non-poisonous and is also environmental -friendly recyclable even if the faceshields after use are treated as dangerous infectious goods .
- the upper and lower, respectively, end portion 119, 120 forming chin and neck protection and as forehead protection, respectively, and an upper lip protection portion 121 of the faceshield 101 folded in half are situated along a common limiting line 122, except a nose protection portion 123 which projects outside but which is possible to fold in along the middle and the mutual plane of the protection parts 111A, 111B in folded state I or along said limiting line 122.
- a lower chin and neck protection portion leans in the direction 124 inward toward the entirely open mouth opening 107 of the faceshield 101 while the forehead portion 119 of the faceshield is essentially entirely straight.
- faceshields 1 are carried on roll in a line or in bundle. Alternatively, they may be packed piece by piece. In all cases, the nose protection portion 123 thereof may be unfolded or folded in inside said limiting line 122.
- the faceshield 101 is open rearward, whereby the patient 102 does not need to raise their head from the dental chair to thread the faceshield 1 over the head, but it can easily be placed over the face from the front and be fastened by sticking through the ears into fitting recesses on the respective side portions of the faceshield .
- a proceeding for the manufacture of a said faceshield 101 which is disposable and intended to be used in dental treatment at dentists and dental hygienists against splash to patients 102 and also in other
- paired layers of material pieces 130, 131 or doubled material pieces are transported to a preferably combined punching and welding roll 132, 133 for the punching of the intended shape and welding using ultrasonic or heated tool welding for the formation of intended faceshields 101.
- Transverse perforating dies are arranged to limit the intended length extension L of the respective faceshield for tearing off intended weakened portions 134.
- Fig. 11 the width of the entire material web is shown marked with, in that connection, the marked punched off material piece 150 along the mouth and nose side of the faceshield in doubled state from the original, full width B of the material web.
- Adhesion agent may be arranged to be applied around the opening of a mouth 109 and that release paper is applied to said adhesion agent.
- two, e.g. 20 cm x 30 cm large sheets of, e.g., polypropylene nonwoven are welded together in a way so that they together form a somewhat three-dimensional shape adapted to the shape of the face in profile with its sometimes projecting, sometimes recessed parts.
- the upper edge and lower edge of the product are equally wide so that manufacture on roll is facilitated.
- the product is provided, at the same time as the welding is carried out, with cuts or chases for ears, breathing openings, and a wide open mouth. This in order to in various ways guarantee the comfort of the patient and the dental staff's possibility of working without hindrance.
- the cuts for the ears may be straight or curved. They are two or more in number and situated at such a distance from the centre of the upper lip that patients of different head sizes always have a dimension fitting cut to pass over both ears and which are placed at such a distance from the centre of the product that the protection is located stretched over the upper lip. This in order to fast and conveniently be able to attach the faceshield over the face of the patient so that it stays in place and affords the dental staff a problem- free treatment situation. These distances are carefully studied by anthropometric measure tables. Possible spectacles or false eyelashes also fit in under the protection by the fact that the protection is looser over the eyes.
- the faceshield is normally kept in place only by means of said ear cuts but there may also be a possibility of further securing that the lower part of the protection is immovable by a perforated cut along the rear edge of the protection being opened and tied behind the neck of the patient.
- the back side of the mouth opening may, as has been described above, be provided with an adhesive run to be able to attach closely around the mouth. Release paper is, if so, applied in the production but which then is removed before application to the patient.
- the mouth opening is shaped to fit the open mouth and follow its shape, but to further size-adjust the
- the mouth part may be provided with a
- the product may be provided with prints in the form of coloured fields of patterns or letters, on one hand to give nice aesthetics and on the other hand to give instructions to the user about how the product should be used.
- the product may either be given a shape fits all faces and where the different cuts for the ears work as size adjustments, or it may be manufactured in different sizes for differently large faces.
- the product may also be manufactured of a combination of translucent material D over the eyes and an opaque material E over the mouth and lower part or the opposite. However, both materials should be of the same chemical structure to facilitate recycling of the
- the raw material consists of, for instance, 20 cm wide rolls of, e.g., polypropylene nonwoven or another hydrophobic material.
- Polypropylene is suitable due to its strength and stretchability .
- Other materials, such as PLA-coated, very thin paper may also work.
- the product may be manufactured in many different ways. Either it is sewn or welded together by means of a combination of ultrasonic welding and punching, so-called rotation punching with ultrasound, which both cuts and welds every product.
- the method also allows that the products can be manufactured in long strips.
- Perforations in upper and lower edge make it possible to tear off one, or several faceshields thereby allowing package on roll.
- the product may also be manufactured by several layers of material being punched by a punching mould and that then two parts are heat-welded together by means of a welding tool.
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE1650626A SE540298C2 (en) | 2016-05-10 | 2016-05-10 | Disposable face protection and procedure for the manufacture of face protection |
SE1651186A SE540297C2 (en) | 2016-05-10 | 2016-09-05 | Face protection and procedure for its manufacture. |
PCT/SE2017/050459 WO2017196236A1 (en) | 2016-05-10 | 2017-05-08 | Disposable faceshield and proceeding for produce the same |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3454684A1 true EP3454684A1 (en) | 2019-03-20 |
EP3454684A4 EP3454684A4 (en) | 2019-11-06 |
Family
ID=60574781
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17796489.7A Pending EP3454684A4 (en) | 2016-05-10 | 2017-05-08 | Disposable faceshield and proceeding for produce the same |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP3454684A4 (en) |
SE (2) | SE540298C2 (en) |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6079980A (en) * | 1999-01-11 | 2000-06-27 | Durand; Cecile M. | Dental patient face mask |
US6532598B1 (en) * | 2002-02-07 | 2003-03-18 | Venanzio Cardarelli | Patient mask |
US6615838B1 (en) * | 2002-06-14 | 2003-09-09 | De-Sheng Tsai | Mask |
EP2160996A1 (en) * | 2008-09-05 | 2010-03-10 | Jürgen Baum | Face mask for cosmetic or medicinal treatments |
DE202015003823U1 (en) * | 2015-05-21 | 2015-09-17 | Ayfer Tunc | Facial drape for the dental prophylaxis range of a blue nonwoven antibacterial, sterilizable, disposables |
-
2016
- 2016-05-10 SE SE1650626A patent/SE540298C2/en not_active IP Right Cessation
- 2016-09-05 SE SE1651186A patent/SE540297C2/en not_active IP Right Cessation
-
2017
- 2017-05-08 EP EP17796489.7A patent/EP3454684A4/en active Pending
Also Published As
Publication number | Publication date |
---|---|
SE1651186A1 (en) | 2017-11-11 |
SE1650626A1 (en) | 2017-11-11 |
EP3454684A4 (en) | 2019-11-06 |
SE540298C2 (en) | 2018-05-29 |
SE540297C2 (en) | 2018-05-29 |
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