EP3225145B1 - Saugkopf mit verbesserterm saugkanal - Google Patents

Saugkopf mit verbesserterm saugkanal Download PDF

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Publication number
EP3225145B1
EP3225145B1 EP17162714.4A EP17162714A EP3225145B1 EP 3225145 B1 EP3225145 B1 EP 3225145B1 EP 17162714 A EP17162714 A EP 17162714A EP 3225145 B1 EP3225145 B1 EP 3225145B1
Authority
EP
European Patent Office
Prior art keywords
outer tube
suction
base plate
channel
suction head
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
Application number
EP17162714.4A
Other languages
English (en)
French (fr)
Other versions
EP3225145A3 (de
EP3225145A2 (de
Inventor
Riccardo Roschi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
New Ermes Europe SRL
Original Assignee
New Ermes Europe SRL
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by New Ermes Europe SRL filed Critical New Ermes Europe SRL
Priority to PL17162714T priority Critical patent/PL3225145T3/pl
Publication of EP3225145A2 publication Critical patent/EP3225145A2/de
Publication of EP3225145A3 publication Critical patent/EP3225145A3/de
Application granted granted Critical
Publication of EP3225145B1 publication Critical patent/EP3225145B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/02—Nozzles
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L5/00—Structural features of suction cleaners
    • A47L5/12—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum
    • A47L5/22—Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum with rotary fans
    • A47L5/28—Suction cleaners with handles and nozzles fixed on the casings, e.g. wheeled suction cleaners with steering handle
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/0081—Means for exhaust-air diffusion; Means for sound or vibration damping
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/009—Carrying-vehicles; Arrangements of trollies or wheels; Means for avoiding mechanical obstacles
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/24—Hoses or pipes; Hose or pipe couplings
    • A47L9/242—Hose or pipe couplings
    • A47L9/244—Hose or pipe couplings for telescopic or extensible hoses or pipes
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/24—Hoses or pipes; Hose or pipe couplings
    • A47L9/248—Parts, details or accessories of hoses or pipes

Definitions

  • the present invention relates to a suction head to be fitted to an electric household appliance for performing cleaning by means of suction, such as a vacuum cleaner, an electric broom, a multi-purpose vacuum cleaner drum or a vacuum cleaner robot, for sucking up dust and/or fluids and/or dirt from a surface.
  • suction such as a vacuum cleaner, an electric broom, a multi-purpose vacuum cleaner drum or a vacuum cleaner robot, for sucking up dust and/or fluids and/or dirt from a surface.
  • the present invention relates to a suction head with an improved suction channel, substantially without narrow zones.
  • a vacuum cleaner, an electric broom or a similar electric household appliance for performing cleaning by means of suction comprises a suction head for sucking up dust, dirt or fluids from a surface.
  • a suction head is generally referred to by the term "brush”.
  • suction head and “brush” are considered to be equivalent.
  • vacuum cleaner will be used with a broad meaning so as to include all those apparatus, for professional or domestic use, which perform cleaning by means of suction.
  • vacuum cleaner will comprise a vacuum cleaner, an electric broom, a so-called multi-purpose vacuum cleaner drum, a vacuum cleaner robot, a centralized suction system for domestic or industrial use and an apparatus for supplying and sucking in steam.
  • a known suction head comprises a base plate shaped so as to have at least one base plate channel open towards a surface to be vacuumed, a suction channel in fluid communication with the base plate and optionally a covering body.
  • the covering body can be engaged with the base plate, the suction channel or both of them The other end of the suction channel communicates with a suction tube.
  • a suction head is known, for example, from EP 2 944 242 and EP 1 600 091 in the name of the same Applicant.
  • EP 1 367 931 A1 discloses a tilting joint in a vacuum cleaner suction channel.
  • suction efficiency will be understood as meaning essentially the ratio, in percentage terms, of the vacuumed material to the material to be vacuumed.
  • the vacuuming tests are carried out in accordance with the provisions of the standard EN 60312-1:2013-05.
  • the Applicant has carefully considered the cross-section of the suction channel and has noted that in the known solutions there are discontinuous and/or narrow zones which prevent a regular suction flow. Owing to these discontinuous zones and significant variations in cross-section, the vacuuming efficiency is significantly reduced compared to that which can be obtained depending on the power of the motor.
  • the suction channel may be shaped with a first fixed portion with a longitudinal axis which follows a circle arc and a second portion, also with a longitudinal axis, which follows a circle arc and is telescopically movable with respect to the fixed portion.
  • the invention relates to a suction head for a vacuum cleaner or the like, comprising:
  • the outer tube may comprise a first part with a longitudinal axis which follows a circumference portion.
  • the first part of the outer tube could have a substantially circular cross-section measured along a plane perpendicular to said longitudinal axis.
  • the inner tube could comprise a first part that receives fluid and a second part, wherein said second part of the inner tube has an outer surface substantially corresponding to an inner surface of the first part of the outer tube.
  • the inner tube could terminate with a sealing lip.
  • the outer tube could comprise a second part having a reduced wall thickness and a circular notch for rotatably engaging an end edge of a joint.
  • the base plate channel could comprise a front edge and a rear edge, wherein at least the surface of the lower face which extends along the front edge of the base plate channel and at least the surface of the lower face which extends along the rear edge of the base plate channel lie on a same plane.
  • the term "inlet” of a certain component indicates a section, an area, a zone or a point where the suction air enters into the component when the suction head is mounted on a vacuum cleaner and this is in use.
  • outlet indicates a section, an area, a zone or a point where the suction air exits the component when the suction head is mounted on a vacuum cleaner and this is in use.
  • front and rear relate to the suction head in its configuration for use: “front” indicates a component which is situated or directed in the direction of advancing movement of the suction head and “rear” indicates a component which is situated or directed in the return direction.
  • the suction head 1 comprises a base plate 2 with at least one base plate channel 3 open downwards, namely towards a surface to be vacuumed.
  • the suction head 1 comprises also a curved and suitably shaped suction channel 4 and a rotatable joint 5 rotating about an axis 6.
  • the assembly consisting of the base plate channel 3, the suction channel 4 and the joint 5 forms the suction duct 7.
  • Figure 3 shows a plan view of an embodiment of the base plate 2 of the suction head according to Figures 1 and 2 .
  • Figures 3A-3E are cross-sections along the respective lines A-E of Figure 3 .
  • the base plate comprises a channel 3 of the base plate 2 which extends substantially over the entire width of the suction head.
  • the channel 3 has a substantially constant width, apart from the end portions where it is narrower.
  • the channel 3 has a smaller depth ( Figure 3E ).
  • the base plate channel increases in depth towards the centre ( Figures 3A-3C ).
  • the base plate channel opens out so that it can connect to the suction channel 4.
  • the front edge of the channel 3 is identified by the reference number 31 and the rear edge of the channel is identified by the reference number 32.
  • the surface of the base plate in the vicinity of the front edge 31 is substantially flat and horizontal.
  • the surface of the base plate close to the rear edge 32 is substantially flat and horizontal.
  • the base plate there are two strips of velvet 36 or the like, a front strip and a rear strip.
  • the strips 36 may be inset in special suitably shaped cavities (shown in the cross-sections of Figures 3C and 3D ).
  • the suction channel 4 is in fluid communication with the channel 3 of the base plate 2.
  • the suction channel 4 according to the present invention comprises a first portion 41 and a second portion 42.
  • the first portion is also called “inner tube” 41 and the second portion is also called “outer tube” 42.
  • the inner tube 41 of the suction channel 4 is connected to the base plate channel 3 via any known connection means.
  • the connection may be of the press-engaging type or a fixing system with screws or rivets.
  • the inner tube 41 of the suction channel 4 may be connected to the base plate 2 and to the base plate channel 3 by means of welding (for example ultrasound) or by means of gluing with adhesive.
  • the inner tube 41 of the suction channel 4 may be formed as one piece with the base plate 2 and therefore with the base plate channel 3.
  • the inner tube 41 of the suction channel 4 comprises a first connecting part 41a and a second part 41b, the outer surface of which follows a curved tubular section.
  • the curved tubular section has a longitudinal axis 41c which follows a circle arc.
  • the outer cross-section of the inner tube 41 (except for its first part 41a which is connected to the base plate channel 3) is substantially circular.
  • the cross-section of the suction channel along its second part 41b could have an inner diameter of about 30-55 mm.
  • the cross-sectional area of the inner tube 41 of the suction channel widens from the inlet towards the outlet and does not have narrow and/or discontinuous zones.
  • the outlet edge of the inner tube 41 of the suction channel 4 terminates with a sealing lip 44.
  • the sealing lip 44 ensures a gentle transition between the inner tube and the outer tube 42 (which will be described here below) of the suction channel 4.
  • a gasket and/or O-ring made of rubber, plastic, Teflon or the like could be provided.
  • Figure 8.1 shows the inner tube separate from the outer tube and shows the surface 41d which forms a surface suitable for the rotating telescopic movement with the outer tube. 42.
  • the internal cross-section of the inner tube 41, also along the surface 41d has a progression which is regular and increases towards the outlet end of the inner tube 41.
  • the inner tube 41 comprises a stop 45 for limiting the movement of the outer tube 42 with respect to the inner tube 41.
  • the stop 45 is shown in Figure 1 and Figure 8.1 .
  • Figure 2 shows the outer tube 42 in its end-of-travel position, with the edge against the stop 45.
  • the end portion of the joint 5 may be inclined at an angle ⁇ of about 40°.
  • the end portion of the joint 5 may be inclined at an angle ⁇ of about 70°.
  • Preferred values of ⁇ are, respectively, 41° and 73°.
  • the outer tube 42 of the suction channel 4 is associated with the inner tube 41 telescopically so that the inner surface of the outer tube 42 cooperates with the outer surface of the inner tube 41.
  • This telescopic cooperation is shown in Figures 1 and 2 which show two different positions of the inner tube 41 with respect to the outer tube 42.
  • the outer tube 42 comprises a first part 42a shaped with a curved tubular section, which is preferably substantially circular, and a second connecting part 42b.
  • the curved tubular section is shaped so as to have a longitudinal axis 42c which follows a circle arc.
  • the longitudinal axis 41c of the inner tube 41 which follows a circle arc substantially coincides with (or forms an extension of) of the longitudinal axis 42c of the outer tube 42 which follows a circle arc.
  • the inner tube 41 of the suction channel 4 terminates with a sealing lip 44 for providing a fluid-tight seal between the inner tube 41 and the outer tube 42.
  • the lip 44 narrows towards the outlet in order to ensure a gentle transition between the two components.
  • the inner tube 41 of the inlet channel 4 is fixed, while the outer tube 42 is rotatable and is telescopically associated with the inner tube 41.
  • the inner tube 41 always remains, at least partially, inside the outer tube 42.
  • the outer tube 42 preferably comprises a bushing 46 with a hole 47 for a pin 48.
  • the bushing 46 is fixed to the outer tube 42 along its bottom part.
  • the axis 48' of the bushing corresponds to the axis of rotation of the outer tube 42.
  • a pair of arms 9 are fixed to the base plate 2 and/or to the inner tube 41 and extend projecting towards the outer tube 42 and the rear part of the suction head 1.
  • the arms 9 may be solid or light-weight as shown in Figure 5 .
  • FIG. 7 illustrates in schematic form the relative rotational movement of the outer tube 42 and the inner tube 41.
  • the holes 92 are configured to support rotatably an axle 81 for the wheels 8.
  • the axle 82 of the wheels 8 is situated at the rear with respect to the axis 48' for relative rotation of the outer tube and inner tube.
  • the second part 42b of the outer tube 42 of the suction channel 4 is preferably circular and operates as a connection for the rotatable joint 5.
  • Figure 9 shows, by way of example, how the rotatable joint 5 is connected together with the outer tube 42 of the suction channel 4.
  • a snap-engaging connection may be envisaged between a tooth 512 formed on the circular edge of the joint 5 and a corresponding incision 49 formed in the outer surface of the second part 42b of the outer tube 42 of the suction channel 4.
  • the thickness of the wall of the joint 5 and that of the outer tube 42 is reduced so that overall the thickness remains substantially unchanged.
  • the angled joint 5 may rotate with respect to the outer tube 42 of the suction duct 4. The rotation takes place about the axis 6 of the second portion 42b of the outer tube 4.
  • the angled joint 5 may perform two rotations.
  • the first rotation is a rotation in a plane, preferably a plane substantially perpendicular to the plane to be vacuumed and in which the suction head 1 moves.
  • a rigid or flexible tube (not shown) may be connected to the outlet end of the joint 5.
  • any other joint which is straight, differently angled, rigid or flexible, may be associated with the outer tube 42 of the suction channel 4.
  • a brush body 10 may be fixed to one or more of the base plate 2, the inner tube 41 of the suction channel 4 or the outer tube 42 of the suction channel 4.
  • the suction head may also comprise a cover 11.
  • the air flow from the base plate channel 3 to the suction channel 4 and the joint 5 does not have major discontinuous or narrow zones.
  • the outer tube 42 has preferably a circular cross-section and an axis 42c which follows a circle arc.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Nozzles For Electric Vacuum Cleaners (AREA)
  • Electric Vacuum Cleaner (AREA)

Claims (7)

  1. Saugkopf für einen Staubsauger oder Ähnliches, aufweisend:
    - eine Grundplatte (2) mit einem Grundplattenkanal (3), welcher einer zu saugenden Oberfläche zugerichtet ist,
    - einen Saugkanal (4) in Fluidkommunikation mit dem Grundplattenkanal (3),
    wobei der Saugkanal (4) ein Innenrohr (41) und ein Außenrohr (42) aufweist,
    wobei das Innenrohr (41) an dem Grundplattenkanal (3) fixiert ist und das Außenrohr (42) bezüglich des Innenrohrs (41) teleskopisch rotierbar ist,
    - eine Buchse (46), welche an dem Außenrohr fixiert ist, und einen Lagerzapfen (48), wobei das Außenrohr (42) um eine Drehachse (48') des Lagerzapfens (48) gedreht werden kann,
    - eine Achse (81) und Räder (8), welche an den Enden der Achse (81) gelagert sind, um den Saugkopf (1) auf der zu saugenden Oberfläche zu bewegen,
    wobei der Lagerzapfen (48) des Außenrohrs (42) vor der Achse (81) angeordnet ist, und
    - zwei Arme (9) mit ersten Löchern (91) für den Lagerzapfen (48) und zweiten Löchern (92) für die Räderachse (81).
  2. Saugkopf (1) nach Anspruch 1, wobei das Außenrohr (42) einen ersten Teil (42a) mit einer longitudinalen Achse (42c) aufweist, welche einem Umfangsabschnitt folgt.
  3. Saugkopf (1) nach Anspruch 2, wobei der erste Teil (42a) des Außenrohrs (42) einen im Wesentlichen kreisförmigen Querschnitt aufweist, gemessen entlang einer Ebene, welche zu der longitudinalen Achse (42c) senkrecht ist.
  4. Saugkopf (1) nach Anspruch 3, wobei das Innenrohr (41) einen ersten Fluid aufnehmenden Teil (41a) und einen zweiten Teil (41b) aufweist, wobei der zweite Teil (41b) des Innenrohrs (41) eine Außenoberfläche aufweist, welche im Wesentlichen einer Innenfläche des ersten Teils (42a) des Außenrohrs (42) entspricht.
  5. Saugkopf (1) nach Anspruch 3, wobei das Innenrohr (41) mit einer Dichtlippe (44) endet.
  6. Saugkopf (1) nach Anspruch 1, wobei das Außenrohr (42) einen zweiten Teil (42b) hat, der eine verminderte Wandstärke und eine kreisförmige Nut (49) zum drehbaren Eingreifen einer Endkante (51) einer Verbindung (5) aufweist.
  7. Saugkopf (1) nach Anspruch 1, wobei der Grundplattenkanal (3) eine Vorderkante (31) und eine Hinterkante (32) aufweist, wobei mindestens die Oberfläche der Unterseite, welche sich entlang der Vorderkante (31) des Grundplattenkanals (3) erstreckt, und mindestens die Oberfläche der Unterseite, welche sich entlang der Hinterkante (32) des Grundplattenkanals (3) erstrecken, auf einer gemeinsamen Ebene liegen.
EP17162714.4A 2016-03-31 2017-03-24 Saugkopf mit verbesserterm saugkanal Active EP3225145B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL17162714T PL3225145T3 (pl) 2016-03-31 2017-03-24 Głowica ssąca z ulepszonym kanałem ssącym

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITUA2016A002159A ITUA20162159A1 (it) 2016-03-31 2016-03-31 Testa di aspirazione con canale di aspirazione perfezionato

Publications (3)

Publication Number Publication Date
EP3225145A2 EP3225145A2 (de) 2017-10-04
EP3225145A3 EP3225145A3 (de) 2017-10-18
EP3225145B1 true EP3225145B1 (de) 2019-05-22

Family

ID=56296966

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17162714.4A Active EP3225145B1 (de) 2016-03-31 2017-03-24 Saugkopf mit verbesserterm saugkanal

Country Status (8)

Country Link
US (1) US20170280956A1 (de)
EP (1) EP3225145B1 (de)
CN (1) CN107260065B (de)
DK (1) DK3225145T3 (de)
ES (1) ES2741829T3 (de)
HU (1) HUE045555T2 (de)
IT (1) ITUA20162159A1 (de)
PL (1) PL3225145T3 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11224319B2 (en) 2017-12-11 2022-01-18 New Ermes Europe S.R.L. Base plate for a vacuum cleaner suction head for the suction of fine dust and large debris
JP1641037S (de) 2018-09-18 2019-09-09
IT202000001555A1 (it) 2020-01-28 2021-07-28 New Ermes Europe Srl Dispositivo adattatore per aspirapolvere elettrico senza filo
USD953673S1 (en) 2020-02-17 2022-05-31 New Ermes Europe S.R.L. Head of a vacuum cleaner

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FR2546054B1 (fr) * 1983-05-17 1985-08-30 Olivier Ets Georges Suceur d'aspirateur a galet
DE8901995U1 (de) * 1989-02-20 1990-06-28 Siemens AG, 1000 Berlin und 8000 München Einlegegelenk
DE19704796C1 (de) * 1997-02-08 1998-01-15 Wessel Werk Gmbh Staubsaugerdüse
ATE264648T1 (de) * 2000-01-28 2004-05-15 New Ermes Europe Spa Staub- und abfallentfernungsgerät
DE10111867A1 (de) * 2001-03-13 2002-09-19 Vorwerk Co Interholding Kippgelenkausbildung eines Staubsauger-Saugkanals
ITMI20041074A1 (it) 2004-05-28 2004-08-28 New Ermes Europe Spa Testa di aspirazione per spirapolvere o simile con condotto di aspirazione separabile
DE102004061971B4 (de) * 2004-12-23 2012-04-26 Wessel-Werk Gmbh Bodendüse für Staubsauger
DE102006031486A1 (de) * 2006-07-07 2008-01-10 Wessel-Werk Gmbh Düse für Bodenstaubsauger
US7798177B1 (en) * 2006-09-07 2010-09-21 Superior Tire & Rubber Corporation Removable transition sleeve for a transition tube of a vacuum sweeper
DE102007010517B4 (de) * 2007-03-05 2013-04-11 Wessel-Werk Gmbh Düse für einen Bodenstaubsauger
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DE102010043515B4 (de) * 2010-11-05 2014-10-16 BSH Bosch und Siemens Hausgeräte GmbH Saugdüsenanordnung und Bodenstaubsauger
DK2944242T3 (da) 2014-05-14 2019-11-11 New Ermes Europe Srl Sugehoved til en støvsuger eller lignende med forbedret basispladekanal
GB2532961B (en) * 2014-12-02 2017-03-22 Dyson Technology Ltd Floor tool for a vacuum cleaner

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Also Published As

Publication number Publication date
CN107260065A (zh) 2017-10-20
ITUA20162159A1 (it) 2017-10-01
ES2741829T3 (es) 2020-02-12
DK3225145T3 (da) 2019-08-12
HUE045555T2 (hu) 2020-01-28
US20170280956A1 (en) 2017-10-05
CN107260065B (zh) 2021-09-14
EP3225145A3 (de) 2017-10-18
PL3225145T3 (pl) 2019-11-29
EP3225145A2 (de) 2017-10-04

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