EP1275475A2 - Méchanisme d'attache flexible pour contrôler la flexion vers le bas d'une tête de balai ainsi que insert flexible comprenant des butées pour le manche à balai - Google Patents

Méchanisme d'attache flexible pour contrôler la flexion vers le bas d'une tête de balai ainsi que insert flexible comprenant des butées pour le manche à balai Download PDF

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Publication number
EP1275475A2
EP1275475A2 EP01307178A EP01307178A EP1275475A2 EP 1275475 A2 EP1275475 A2 EP 1275475A2 EP 01307178 A EP01307178 A EP 01307178A EP 01307178 A EP01307178 A EP 01307178A EP 1275475 A2 EP1275475 A2 EP 1275475A2
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EP
European Patent Office
Prior art keywords
section
head
flexible
handle
broom
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.)
Withdrawn
Application number
EP01307178A
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German (de)
English (en)
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EP1275475A3 (fr
Inventor
Simon Ralph Cassar
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.)
Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP1275475A2 publication Critical patent/EP1275475A2/fr
Publication of EP1275475A3 publication Critical patent/EP1275475A3/fr
Withdrawn legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25G—HANDLES FOR HAND IMPLEMENTS
    • B25G1/00—Handle constructions
    • B25G1/02—Handle constructions flexible

Definitions

  • the present invention relates to a cleaning or sweeping apparatus and in particular, to brooms or applications where material is being removed by an apparatus.
  • the present invention further relates to insert adjustments which can enhance the ease of use and cleaning capability of brooms.
  • the present invention relates to a cleaning apparatus or the like having the capability of up and down flexing for providing improved sweeping action.
  • the standard brush broom has two primary components.
  • the first component is the head that comprises a rectangular piece of material usually made of wood that supports therein a multiplicity of bristles of fibers that extend transversely to the head.
  • the second primary component of the brush broom is the handle which is usually a cylindrical pole that is rigidly although sometimes removably affixed to the top of the head in the manner which permits the brush broom to be pushed and pulled by the exertion of a force on the handle.
  • Patents on mechanisms or attachments that allow for a flexible joint between the brush broom and broom handle are old in the prior art.
  • all prior art devices are either too costly to manufacture due to the expense of springs and their installation into the broom head (e.g., patents 3,506,996 and 4,785,489) or as in the case of polymeric or polyurethane adapter patents 4,722,634 and 5,333,345, have excessive flex which causes a wobble effect because the flexible attachments are not rectangular in shape and had no limit stops.
  • the prior art devices allow the broom to have excessive lateral movement when in contact with a stationary object thus causing the contents to be swept, instead of being retained in the brush broom bristles, due to the excessive angle of the brush broom in relation to the broom handle.
  • the prior art devices allow the flex member to go beyond the stress limit of the flexible insert material, causing the flexible membrane to crack and eventually break, thus rendering it ineffective.
  • the prior art flexible insert attachments are not rectangular in shape along the longitudinal axis which is critical to reduce stress to the flexible member yet allow for lateral movement and retain the rigidity in the forward and aft movements.
  • Patent 5,333,345 uses a polyurethane flexible material and requires flanges to be encapsulated into the polyurethane elastomer material, thus making the adapter cost prohibitive for residential and commercial brooms.
  • the present invention is a mechanism that is affixed at the location between the brush handle and the head of the brush broom to provide a flexible member at the junction where the handle is attached to the head.
  • the handle maintains rigidity in the direction in which it is moved but is flexible in the lateral direction up to the predetermined limits of the stops. Therefore, when the brush broom comes in contact with a stationary object, the broom will only flex up to the stress limit of the flexible material due to the stop limits yet have sufficiently enough movement to reduce hand injury to the operator or damage to the structure or brush broom handle.
  • the design incorporates a positive stop to eliminate the broom head from flexing beyond the limits of the memory of the material.
  • the stop limits allow for control of the flexible movement, thus eliminating a wobble effect when the broom head goes out of control and makes the broom head unusable for cleaning purposes.
  • an apparatus by which a conventional brush broom can efficiently utilize a flexible insert that has controlled limits and can be economically manufactured.
  • the present invention also provides an insert that can be adapted to existing brush brooms to provide controlled flexibility.
  • the present invention further provides an insert which can be attached to the forward end of the handle to thereby provide the option of manufacturing a handle with the insert attached which can be affixed to the top of the head of a brush broom.
  • the present invention is a flexible attachment mechanism used in conjunction with push brooms having a broom handle and a broom head to provide a flexible attachment mechanism at the junction where the broom handle is attached to the broom head.
  • the flexible attachment mechanism allows the broom head to flex up and down causing the flexible attachment mechanism to be pre-loaded when pushing with the broom handle and upon releasing the downward movement during a normal sweeping action, the pre-loaded flexible attachment mechanism springs up, which in turn causes the broom head to spring upwardly to kick the debris further away from the broom head.
  • the present invention also provides a flexible attachment mechanism which can be adapted for connecting a push broom head to a push broom handle and thereby forms a complete cleaning apparatus.
  • the present invention further provides a flexible attachment mechanism that can be adapted for controlling the up and down flexing of the cleaning head to provide an improved sweeping action.
  • the flexible attachment mechanism may be made of an elastomeric material.
  • the flexible attachment mechanism may be integrally formed with a push broom head.
  • the flexible insert member 10 acting as a stop limit mechanism.
  • the flexible insert member 10 comprises a longitudinal section 14 and a lateral section 16 that are interconnected through an arcuate connecting section 18.
  • the one piece molded insert looks like a pyramid shaped object with two elongated holes 19 and 20 that are open on both the left and right outboard side of the insert with the top portion of the triangle pyramid shape having a circular receptacle to receive the broom handle.
  • the alignment and shape of the two elongated holes 19 and 20 are symmetrical and extend away from each other.
  • the overall configuration of the flexible control stop member 10 resembles an inverted "T" with the mid portion of the vertical leg being thin in the middle and the lower and top portions of the leg being thick and wide thus allowing for control stops.
  • the singular molded body unit has two symmetrical open-ended cavities 19 and 20. Each cavity is arcuate in design and forms tops 21 and 22 and bottoms 24 and 23 stop pads that lie around the lateral axis.
  • the gap between the stop pads 21, 24 and 22, 23 respectively, can vary to allow the brush broom head to flex between 3 degrees to up to 75 degrees depending on the application type of the brush broom type. Typically, the gap distance between the stop limits is set to allow no more than 30 degrees broom head to broom handle deflection.
  • the lower base mount portions 26 and 16 protrude upward and merge into a cylindrical sleeve portion.
  • the upper cylindrical portion extends upwardly and outwardly preferably at an angle of inclination of approximately 45 degrees in relation to the base mount as shown in figure 5, item "A".
  • the upper sleeve portion of the cylindrical sleeve section 130 includes an axial bore 140 having a uniform dimension so as to receive the transverse dimension of the handle 120.
  • the thickness of the material encapsulating handle 120 is sufficient to not crack when impact to the head of the broom occurs.
  • the upper sleeve section 130 has a diameter to tightly receive in a generally slip-fit relationship the transverse dimension of the handle to frictionally retain the handle therein.
  • the insert member 10 is made of any flexible substance with memory such as rubber, plastic, titanium, and polyvinyl. It is also within the spirit and scope of the present invention for the attachment to be made of flexible but strong plastic such as Mylar®, polypropylene or any other flexible material exhibiting the required characteristics.
  • the preferred embodiment of the present invention is shown in use in figures 1, 2, 3, 4 and 6.
  • the conventional brush broom 100 comprises a head member 102 and a handle 120.
  • the head 102 in turn comprises a top surface 104 and a bottom surface 106.
  • the bottom surface 106 supports a multiplicity of bristles or fibers 108 that are cut so as to be aligned in the same plane 110 when the head 102 is flush against the floor during a sweeping operation.
  • the handle 120 is an elongated member that in the preferred embodiment for ease of gripping is a pole. When fitted with the preferred embodiment of the insert apparatus 10, the handle 120 is encapsulated into recess 140 which is of sufficient length to accommodate a sufficient length of the longitudinal handle 120.
  • the molded apparatus is comprised of left and right recessed cavities 27 and 28 respectively that are open on both sides of the embodiment that form the upper and lower left side stops 21 and 24 and right side stops 22 and 23.
  • the two recessed cavities share the same back portion of the cavity that forms the rectangular flexible member 18.
  • the recessed cavities are elongated along the Y axis to allow for the member to flex in the lateral movement as shown in figure 4.
  • Lower stops 24 and 23 of the flexible insert member form the base of the attachments 26 and 16.
  • the base of the attachment is supported onto the broom head by screws 150, 151 and 152 that connect the attachment to the broom head.
  • the longitudinal section 14 (and flexible member 18) is offset at an angle relative to its respective lateral sections 26 and 16.
  • the preferred relative angle "A" is approximately 45 degrees, although any angle from approximately 15 degrees to approximately 80 degrees is allowed.
  • FIG. 5 An alternative embodiment for the base of the attachment is illustrated in figures 5 and 6.
  • the bases 26 and 16 are attached to the brush broom head by two bolts 30 and 32 that are inserted through the broom head bottom adjacent to the bristles as shown in figures 6 and 5, and connect the attachment to the brush broom head with wing nuts 29 and 31.
  • the stop limit mechanism is identical in design and material as to the aforementioned alternative embodiment.
  • An alternative embodiment is identical to the preferred embodiment with the flexible member having a rectangular shaped flexible member as indicated in figure 3, item 18 and being a one-piece unitary molded attachment.
  • the difference between the preferred attachment and the alternative attachment is that the stop limits have been removed as indicated in figure 8.
  • the present invention is a flexible insert member with stop limits that is attached to one end of a brush broom handle and attached to the head of the brush broom to thereby provide a controlled flexible connection between the handle and head of the brush broom, the flexible insert being rigid in the longitudinal direction to permit the handle to cause the broom head to move back and forth and the flexible insert being flexible with stop limits in the lateral direction to thereby permit the handle to flex laterally with respect to the head of the brush broom.
  • a flexible sweeper can be manufactured that is economical and durable and thus allow a person doing the sweeping to sweep liberally and freely without worry of nicking or denting furniture and household trim along with reducing hand injury due to sudden broom impact.
  • the brush broom has the rigidity to push or pull large loads without flexing beyond a predetermined degree via the stop limits. The life of the broom handle is also increased.
  • FIG. 9 there is shown alternatively at 210 the present invention flexible attachment mechanism used in conjunction with a conventional push broom apparatus which includes a push broom head 202 and a push broom handle 204, where the flexible attachment mechanism acts as a stop limit mechanism in the down movement of the push broom head.
  • the push broom head 202 includes a top surface and a bottom cleaning surface which has a plurality of bristles or fibers 206 that are flush against the floor during a sweeping action.
  • the flexible attachment mechanism 210 is molded from a unitary elastomeric material and includes an inclined longitudinal section 214, a lateral mounting section 216 and an arcuate connecting section 218 (see Figure 12) which interconnects the longitudinal and lateral sections together.
  • the flexible attachment mechanism 210 is generally a pyramid-shaped object with two elongated symmetrical through openings 219 and 220 located on both sides of the connecting section 218.
  • the longitudinal section 214 has a circular axial bore 240 with an open end 244.
  • the axial bore is a uniform bore for receiving the broom handle 204, where the broom handle 204 is press-fitted thereto.
  • the lateral section 216 is attached to the top surface of the push broom head 202 by conventional bolts and nuts.
  • the bolts 250 are inserted through the bottom surface of the broom head 202 and through bores in the mounting section 216 of the flexible attachment mechanism 210 and secured thereto by two corresponding wing nuts.
  • the mounting section 216 may be secured by at least two threaded bolts respectively inserted through the top of the mounting section 216 and threadedly engaged with the broom head 202 for securing the broom head 202 to the flexible attachment mechanism 210.
  • each of the through openings 219 and 220 is arcuate in shape and forms top stop pads and bottom stop pads that lie around the lateral axis.
  • the gap between the stop pads can vary to allow the broom head to flex between 3° to up to 75° depending on the application type of the push broom.
  • the gap distance between the upper and lower stop pads is set to allow no more than 30° broom head to broom handle deflection.
  • the longitudinal section 214 and the flexible connecting section 218 is offset at an angle of approximately 45°, preferably a range of approximately 15° to 80° can be used.
  • the flexible attachment mechanism 210 further comprises a downward limit stop member 260 which is integrally molded to the rear of the connecting section 218, where a gap 262 is formed between the limit stop member 260 and the rear end of the broom head 202 and an open cavity 264 is formed between the top of the broom head 202 and the underside of the flexible attachment mechanism 210.
  • the downward limit stop member 260 extends downwardly and located half the thickness of the broom head 202 as shown in Figure 11.
  • the flexible attachment mechanism 210 allows the broom head 202 to move in a downward motion which causes the mechanism to be pre-loaded when a user pushes down on the broom handle 204 and upon releasing the downward pressure during a normal sweeping action, the pre-loaded flexible attachment mechanism 210 will spring up the broom head 202 causing the debris in front of the broom head to be lifted up and pushed further away from the broom head.
  • the stop limit member 260 of the flexible attachment mechanism 210 controls the amount of flexing in the downward direction to ensure that the broom head 202 does not move down more than 75° when the user pushes down on the broom handle 204.
  • the broom head will flex too far causing the bristles to not make sufficient contact with the floor and debris being pushed.
  • the limit stop member 260 engages with the rear end of the broom head 202, thereby stopping any further movement of the flexible attachment mechanism 210.
  • the present invention conforms to conventional forms of manufacture or any other conventional way known to one skilled in the art, and is of simple construction and is easy to use.
  • the flexible attachment mechanism 210 can be made from several materials. The manufacturing process which could accommodate the construction of the flexible attachment mechanism may be injection, thermoform, etc. or other molding process.
  • the flexible attachment mechanism 210 can be made of any flexible substance with memory such as rubber, plastic, titanium, and polyvinyl. It will also be appreciated that the flexible attachment mechanism 210 can be made of flexible but strong plastic such as Mylar®, polypropylene or any other flexible material exhibiting the required characteristics.
  • the present invention flexible attachment mechanism used in conjunction with a conventional push broom apparatus.
  • the flexible attachment mechanism 210 can be manufactured with or without a downward limit stop member 260.
  • FIG. 15 and 16 there is shown an alternative embodiment of the present invention flexible attachment mechanism 310 which is integrally formed with a push broom head 302.
  • the present invention is a push broom, comprising: (a) an elongated laterally disposed broom head having a top surface and a bottom cleaning surface, the bottom cleaning surface having a plurality of bristles extending downwardly therefrom; (b) a unitary flexible attachment mechanism having a mounting section, an inclined longitudinal section, and a flexible connecting section integrally connecting the mounting section and the longitudinal section together, the mounting section centrally affixed to the top surface of the broom head such that the longitudinal section extends upwardly and outwardly to form an angle relative to the mounting section, the longitudinal section having an axial bore with an open end; (c) an elongated broom handle having one end press-fitting from the open end and secured within the axial bore of the longitudinal section of the flexible attachment mechanism; (d) the flexible connecting section having a pair of recesses located on opposite sides and extending the width of the flexible connecting section, each recess forming an upper engagement pad and a lower stop limit pad, where the upper engagement pad
  • the present invention is an attachment member to be used in conjunction with a push broom having a handle member and a laterally disposed cleaning head member with a top surface, a bottom surface and a plurality of bristles attached to the bottom surface and extending downwardly therefrom, the attachment member comprising: (a) a unitary flexible body having a mounting section, a longitudinal section and a flexible connecting section integrally connecting the mounting section and the longitudinal section together, the longitudinal section having an axial bore with an open end for receiving and securing one end of the handle member thereto; (b) the flexible connecting section having a pair of through recesses located on opposite sides and extending the width of the flexible connecting section, each recess forming an upper engagement pad and a lower stop limit pad, where the upper engagement pad and its respective lower stop limit pad form a predetermined gap for allowing a predetermined angle of lateral flexing of the longitudinal section and the handle; (c) means for attaching the mounting section to the top surface of the head member of the push broom;
  • the present invention is an attachment member to be used in conjunction with a cleaning apparatus having a cleaning head and a handle
  • the attachment member comprising: (a) a flexible body having a mounting section for mounting to the cleaning head, a longitudinal section for receiving and securing one end of the handle thereto, and a connecting section interconnecting the mounting section and the longitudinal section together; (b) the connecting section having a thickness which is thinner than the thickness of the mounting section and the longitudinal section for allowing a predetermined angle of lateral flexing of the connecting section with the longitudinal section; (c) means for attaching the mounting section to the cleaning head of the cleaning apparatus; and (d) means for limiting the downward flexing of the connecting section and the longitudinal section, where the limiting means controls the amount of downward flexing; (e) whereby the body of the attachment member is pre-loaded when a user pushes down on the handle causing the connecting and longitudinal sections to flex downward and upon releasing the downward pressure during a normal sweeping action, the pre-loaded body of the attachment
  • the present invention is an attachment member to be used in conjunction with a cleaning apparatus having a cleaning head and a handle
  • the attachment member comprising: (a) a flexible body having a mounting section for mounting to the cleaning head, a longitudinal section for receiving and securing one end of the handle thereto, and a connecting section interconnecting the mounting section and the longitudinal section together; (b) means for attaching the mounting section to the cleaning head of the cleaning apparatus; and (c) means for limiting the downward flexing of the connecting section and the longitudinal section, where the limiting means controls the amount of downward flexing; (d) whereby the body of the attachment member is pre-loaded when a user pushes down on the handle causing the connecting and longitudinal sections to flex downward and upon releasing the downward pressure during a normal sweeping action, the pre-loaded body of the attachment member springs up the cleaning head causing the debris in front of the cleaning head to be lifted up and pushed further away from the cleaning head.
  • the present invention is a brush broom, comprising: (a) an elongated laterally disposed head member having a top surface and a bottom surface; (b) a plurality of bristles each having one end affixed to the bottom surface of the head member and extending downwardly therefrom; (c) a unitary flexible insert member having a mounting section, an inclined longitudinal section and a flexible connecting section integrally connecting the mounting section with the longitudinal section, the mounting section centrally affixed to the top surface of the head member such that the longitudinal section extends upwardly and outwardly to form an angle relative to the mounting section, the longitudinal section having an axial bore with an open end; (d) an elongated handle member having one end press-fitting from the open end and secured within the axial bore of the longitudinal section of the flexible insert member; and (e) the flexible connecting section having a pair of symmetrical arcuate recesses located on opposite sides and extending the width of the flexible connecting section, each arcuate recess forming an upper
  • the present invention is a flexible insert member to be used in conjunction with a brush broom having a handle and a laterally disposed cleaning head with a top surface, a bottom surface and a plurality of bristles attached to the bottom surface and extending downwardly therefrom
  • the flexible insert member comprising: (a) a unitary flexible body having a mounting section, a longitudinal section and a flexible connecting section integrally connecting the head section with the longitudinal section, the longitudinal section having an axial bore with an open end for receiving and securing one end of the handle thereto; (b) the flexible connecting section having a pair of symmetrical arcuate recesses located on opposite sides and extending the width of the flexible connecting section, each arcuate recess forming an upper engagement pad and a lower stop limit pad, where the upper engagement and its respective lower stop limit form a predetermined gap distance for allowing a predetermined angle of lateral flexing of the longitudinal section and the handle; and (c) means for centrally attaching the mounting section to the top surface of the
  • the present invention is an attachment member to be used in conjunction with a cleaning apparatus having a handle and a laterally disposed cleaning head
  • the attachment member comprising: (a) a body made of elastomer material and having a mounting section, a longitudinal section and a flexible connecting section connecting the mounting section with the longitudinal section, the longitudinal section for receiving and securing one end of the handle thereto; (b) the flexible connecting section having a thickness which is thinner than the thickness of the mounting section and the longitudinal section for allowing a predetermined angle of lateral flexing of the flexible connecting section with the longitudinal section; and (c) means for attaching the mounting section to the cleaning head of the cleaning apparatus such that the longitudinal section extends upwardly and outwardly to form an angle relative to the mounting section; (d) whereby the attachment member allows the handle to maneuver the cleaning head of the cleaning apparatus to be pushed back and forth while at the same time allows the handle to move laterally relative to the cleaning head.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cleaning Implements For Floors, Carpets, Furniture, Walls, And The Like (AREA)
EP01307178A 2001-07-12 2001-08-23 Méchanisme d'attache flexible pour contrôler la flexion vers le bas d'une tête de balai ainsi que insert flexible comprenant des butées pour le manche à balai Withdrawn EP1275475A3 (fr)

Applications Claiming Priority (2)

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US90537701A 2001-07-12 2001-07-12
US905377 2001-07-12

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EP1275475A2 true EP1275475A2 (fr) 2003-01-15
EP1275475A3 EP1275475A3 (fr) 2003-08-27

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EP01307178A Withdrawn EP1275475A3 (fr) 2001-07-12 2001-08-23 Méchanisme d'attache flexible pour contrôler la flexion vers le bas d'une tête de balai ainsi que insert flexible comprenant des butées pour le manche à balai

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007040514A1 (de) * 2007-08-28 2009-03-05 Stefan Traublinger Breitwischgerät
DE102010013218A1 (de) * 2010-03-29 2011-09-29 Johann Martin Stamp Reinigungsgerät

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1121706A (fr) * 1955-02-15 1956-08-24 Perfectionnements aux dispositifs de fixation des manches pour balais et antres instruments
DE1166146B (de) * 1960-12-31 1964-03-26 Ansgar Vogt Stielhalter aus plastischem Kunststoff fuer Besen, Schrubber od. dgl. und gegebenenfalls dazugehoerende Gewindebuchse
US4785489A (en) * 1986-09-08 1988-11-22 Midwest Brush, Inc. Resilient broom and scraper
US5333345A (en) * 1992-03-30 1994-08-02 Donnell Jerry L O Cleaning implement including brace of elastomeric material

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1121706A (fr) * 1955-02-15 1956-08-24 Perfectionnements aux dispositifs de fixation des manches pour balais et antres instruments
DE1166146B (de) * 1960-12-31 1964-03-26 Ansgar Vogt Stielhalter aus plastischem Kunststoff fuer Besen, Schrubber od. dgl. und gegebenenfalls dazugehoerende Gewindebuchse
US4785489A (en) * 1986-09-08 1988-11-22 Midwest Brush, Inc. Resilient broom and scraper
US5333345A (en) * 1992-03-30 1994-08-02 Donnell Jerry L O Cleaning implement including brace of elastomeric material

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007040514A1 (de) * 2007-08-28 2009-03-05 Stefan Traublinger Breitwischgerät
DE102010013218A1 (de) * 2010-03-29 2011-09-29 Johann Martin Stamp Reinigungsgerät
DE102010013218B4 (de) * 2010-03-29 2015-06-03 Johann Martin Stamp Reinigungsgerät

Also Published As

Publication number Publication date
EP1275475A3 (fr) 2003-08-27

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