DE1050502B - - Google Patents

Info

Publication number
DE1050502B
DE1050502B DENDAT1050502D DE1050502DA DE1050502B DE 1050502 B DE1050502 B DE 1050502B DE NDAT1050502 D DENDAT1050502 D DE NDAT1050502D DE 1050502D A DE1050502D A DE 1050502DA DE 1050502 B DE1050502 B DE 1050502B
Authority
DE
Germany
Prior art keywords
tube
flattened
toothpicks
another
toothpick
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
Application number
DENDAT1050502D
Other languages
English (en)
Publication date
Publication of DE1050502B publication Critical patent/DE1050502B/de
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
    • B29C67/0044—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 for shaping edges or extremities
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C15/00—Devices for cleaning between the teeth
    • A61C15/02—Toothpicks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C57/00—Shaping of tube ends, e.g. flanging, belling or closing; Apparatus therefor, e.g. collapsible mandrels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/74—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area
    • B29C65/743—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using the same tool for both joining and severing, said tool being monobloc or formed by several parts mounted together and forming a monobloc
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B29C66/431—Joining the articles to themselves
    • B29C66/4312—Joining the articles to themselves for making flat seams in tubular or hollow articles, e.g. transversal seams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7392—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
    • B29C66/73921—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81427—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined comprising a single ridge, e.g. for making a weakening line; comprising a single tooth
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81431—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined comprising a single cavity, e.g. a groove
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8322—Joining or pressing tools reciprocating along one axis
    • B29C66/83221—Joining or pressing tools reciprocating along one axis cooperating reciprocating tools, each tool reciprocating along one axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
    • B29C67/0014—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 for shaping tubes or blown tubular films
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2023/00—Tubular articles
    • B29L2023/005—Hoses, i.e. flexible
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2023/00—Tubular articles
    • B29L2023/22—Tubes or pipes, i.e. rigid

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Description

DEUTSCHES
PATENTAMT A61c;B29f
CHRIFT 1050 502
H 31981 VIIId/30 b
ANMELDETAGi 23. DEZEMBER 1951
BEKANNTMACHUNG DER ANMELDUNG UND AUSGABE DER
AUSLEGE SCH RI FT: 12. februar 1959
Zahnstocher werden aus verschiedenen Materialien, unter anderem auch aus Kunststoff hergestellt. Meist haben sie die Form eines an beiden Enden zugespitzten Flachstäbchens, doch sind auch schon Zahnstocher bekannt, die aus einem Kunststoffröhrchen bestellen, welches an den Enden durch schrägen Zuschnitt zugeschärft ist. Im allgemeinen ergibt sich bei der Herstellung von Zahnstochern die Aufgabe, das Material und die Form des Zahnstochers so aufeinander abzustimmen, daß einerseits die zügeschärften Endteile unter Beibehaltung einer gewissen Steifigkeit hinreichend elastisch verformbar si\id, damit sie sich dem Verlauf der ZahnzΛvischenräume anpassen können, ohne zu brechen oder abzusplittern, andererseits aber der Schaft möglichst steif und fest ist, um eine einfache Handhabung zu gewährleisten und eine Bruchgefahr zu vermeiden. Überdies sollen Zahnstocher als Massenartikel möglichst einfach und billig herstellbar sein und natürlich allen hygienischen Anforderungen entsprechen.
Die Erfindung bezieht sich auf einen Zahnstocher, der die Form eines an zumindest einem Ende abgeplatteten und zugespitzten Röhrchens hat. und unterscheidet sich aber von den bekannten Ausführungen erfindungsgemäß dadurch, daß das Röhrchen aus einem thermoplastischen Kunststoff besteht und daß seine einander berührenden Innenwandteile miteinander verschweißt sind. Die durch die Verwendung von thermoplastischem Kunststoff ermöglichte Ver-Zahnstocher und Vürranren
zu seiner Herstellung
schweißung des Röhrchenendes erlaubt es, die erfin-
30
dungsgemäßen Zahnstocher auf sehr einfache Weise herzustellen, indem das Ende des Kunststoffröhrchens zwischen Preßmatrizen abgeplattet und zugleich unter Wärmeeinwirkung verschweißt wird.
Es sei erwähnt, daß es bereits bekannt ist. Zahnstocher aus Strohhalmen herzustellen, wobei die Enden des Strohhalmes ebenfalls flachgedrückt und zugespitzt werden. Das Stroh ist jedoch trotz Imprägnierung mit einem Lack, der zugleich die Verbindung der einander berührenden Innenwandteile des Röhrchens herzustellen hat. spröde und kann insbesondere wegen des häufig vorkommenden Strahlenpilzes nur mit erheblichem Aufwand sicher entkeimt werden. Aus diesen Gründen ist bei der Herstellung von Zahnstochern aus Strohhalmen ein erheblicher Arbeitsaufwand erforderlich, wodurch die verminderten MatcriaIkostcii wieder aufgewogen werden. Außerdem entsprechen die erhaltenen Zahnstocher den Anforderungen doch nicht vollauf.
Tn Fig. 1 der Zeiclinung ist ein erfindungsgemäßer Zahnstocher perspektivisch dargestellt:
Fig. 2 und 3 erläutern ein bevorzugtes Verfahren zu seiner Herstellung.'
Anmelder:
Rosi Haas, München 13, Schellingstr. 19
Beanspruchte Priorität: Österreich vom 4. Januar 1957
Luigi v. Mack, Klagenfurt (Österreich),
ist als Erfinder genannt worden
Erfindung besteht aus einem Röhrchen aus thermoplastischem Kunststoff, wie Polyvinylchlorid, Polyäthylen oder Polystyrol. Die Röhrchenform verleiht dem Schaftteil 1 des Zahnstochers trotz geringen Materialaufwandes eine erhebliche Steifigkeit. Die beiden Endteile2 des Zahnstochers sind plattgedrückt und im spitzen Winkel zugeschnitten. Die einander berührenden, dreieckigen Wandungsteile sind miteinander verschweißt. Diese Endteile 2 gehen allmählich in die Röhrchenform über, so daß der Zahnstocher mit zunehmendem Abstand von der Spitze an Steifigkeit zunimmt.
Die Fig. 2 und 3 zeigen in der Seitenansicht bzw. in Draufsicht einen im Sinne der eingezeichneten Pfeile ruckweise vorgeschobenen Röhrchenstrang 1 aus thermoplastischem Kunststoff, der in der Station A durch zwei gegeneinander bewegte, geheizte Stempel 3, 4 örtlich abgeplattet wird, wobei gleichzeitig die zur Berührung kommenden Inricnwandteile verschweißt werden. Sodann erfolgt ein Vorschub um die gewünschte Länge des Zahnstochers, wodurch der abgeplattete Röhrchenteil Iu in der Station B zwischen gegeneinander bewegte Schneidmatrizen 5, 6 gelangt, die bei ihrem Arbcitshub eine Auftrciinung des abgeplatteten Röhrchenteiles lß und eine Zuspitzung der dabei entstehenden Röhrchenende-n bewirken.
Die Preßstcmpcl 3,4 sind an ihren Scitonrändor;! abgerundet, so daß sich eine allmähliche Ahplrittuiig

Claims (2)

  1. und daß die einander berührenden Innenwandteile des Röhrchens miteinander verschweißt sind.
  2. 2. Verfahren zur Herstellungeines Zahnstochers nach Anspruch 1, dadurch gekennzeichnet, daß ein röhrenförmiger Kunststoffstrang zwischen Preßmatrizen abgeplattet und zugleich unter Wärmeeinwirkung zugeschweißt wird, worauf an der Schweißstelle eine Trennung unter gleichzeitiger Zuspitzung der beiden erhaltenen Röhrchenenden erfolgt.
    Hierzu 1 Blatt Zeichnungen
    zwischen den Schneidmatrizen 5, 6 kann durch
    ^nete Formgebung dieser Matrizen beliebig ge
    It werden.
    Patentansprüche: 5
    1. Zahnstocher in Form eines an zumindest
    einem Ende abgeplatteten und zugespitzten Röhrchens, dadurch gekennzeichnet, daß das Röhrchen
    aus einem thermoplastischen Kunststoff besteht io
    BAD ORIGINAL
DENDAT1050502D Pending DE1050502B (de)

Publications (1)

Publication Number Publication Date
DE1050502B true DE1050502B (de) 1959-02-12

Family

ID=590886

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT1050502D Pending DE1050502B (de)

Country Status (1)

Country Link
DE (1) DE1050502B (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0161057A1 (de) * 1984-04-02 1985-11-13 Maurice Grosse Zahnstocher
GR890100719A (el) * 1989-11-01 1992-04-17 Anthousa Piki Νεα πρωτοτυπη οδοντογλυφιδα καθαρισμου δοντιων.
FR2733714A1 (fr) * 1995-05-03 1996-11-08 Esercizio Ind Materie Plastich Procede et appareillage pour la production d'elements profiles en matiere plastique ayant des extremites faconnees, et produits qui en resultent
DE19946377C1 (de) * 1999-02-11 2001-03-22 Erich Gstaltmayr Zahnstocher

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0161057A1 (de) * 1984-04-02 1985-11-13 Maurice Grosse Zahnstocher
GR890100719A (el) * 1989-11-01 1992-04-17 Anthousa Piki Νεα πρωτοτυπη οδοντογλυφιδα καθαρισμου δοντιων.
FR2733714A1 (fr) * 1995-05-03 1996-11-08 Esercizio Ind Materie Plastich Procede et appareillage pour la production d'elements profiles en matiere plastique ayant des extremites faconnees, et produits qui en resultent
DE19946377C1 (de) * 1999-02-11 2001-03-22 Erich Gstaltmayr Zahnstocher

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