DE69421900T2 - Hornwerkzeug zum umwandeln von längsvibrationen in torsionsvibrationen - Google Patents

Hornwerkzeug zum umwandeln von längsvibrationen in torsionsvibrationen

Info

Publication number
DE69421900T2
DE69421900T2 DE69421900T DE69421900T DE69421900T2 DE 69421900 T2 DE69421900 T2 DE 69421900T2 DE 69421900 T DE69421900 T DE 69421900T DE 69421900 T DE69421900 T DE 69421900T DE 69421900 T2 DE69421900 T2 DE 69421900T2
Authority
DE
Germany
Prior art keywords
vibrations
torsion
horn tool
convert length
convert
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.)
Expired - Lifetime
Application number
DE69421900T
Other languages
English (en)
Other versions
DE69421900D1 (de
Inventor
Takehisa Ishikawa
Yoshiaki Nagata
Tomio Maruzoe
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.)
MISHIMA TAIJI
Original Assignee
MISHIMA TAIJI
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 MISHIMA TAIJI filed Critical MISHIMA TAIJI
Publication of DE69421900D1 publication Critical patent/DE69421900D1/de
Application granted granted Critical
Publication of DE69421900T2 publication Critical patent/DE69421900T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B3/00—Methods or apparatus specially adapted for transmitting mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
    • 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
    • B29C65/08—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
    • 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
    • B29C65/08—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
    • B29C65/081—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations having a component of vibration not perpendicular to the welding surface
    • B29C65/082—Angular, i.e. torsional ultrasonic welding
    • 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
    • B29C66/80—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
    • B29C66/8145—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 constructional aspects of the pressing elements, e.g. of the welding jaws or clamps
    • 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
    • B29C66/8145—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 constructional aspects of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/81463—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 constructional aspects of the pressing elements, e.g. of the welding jaws or clamps comprising a plurality of single pressing elements, e.g. a plurality of sonotrodes, or comprising a plurality of single counter-pressing elements, e.g. a plurality of anvils, said plurality of said single elements being suitable for making a single joint
    • 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
    • B29C66/816—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 mounting of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8167—Quick change joining tools or surfaces
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K15/00—Acoustics not otherwise provided for
    • 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
    • B29C66/83—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
    • 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
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/95—Measuring or controlling the joining process by measuring or controlling specific variables not covered by groups B29C66/91 - B29C66/94
    • B29C66/951—Measuring or controlling the joining process by measuring or controlling specific variables not covered by groups B29C66/91 - B29C66/94 by measuring or controlling the vibration frequency and/or the vibration amplitude of vibrating joining tools, e.g. of ultrasonic welding tools
    • B29C66/9516—Measuring or controlling the joining process by measuring or controlling specific variables not covered by groups B29C66/91 - B29C66/94 by measuring or controlling the vibration frequency and/or the vibration amplitude of vibrating joining tools, e.g. of ultrasonic welding tools by controlling their vibration amplitude

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
DE69421900T 1993-04-08 1994-03-31 Hornwerkzeug zum umwandeln von längsvibrationen in torsionsvibrationen Expired - Lifetime DE69421900T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP5104896A JP2557310B2 (ja) 1993-04-08 1993-04-08 縦振動を捩り振動に変換する工具ホーン
PCT/JP1994/000533 WO1994023935A1 (en) 1993-04-08 1994-03-31 Tool horn for converting longitudinal vibrations to torsional vibrations

Publications (2)

Publication Number Publication Date
DE69421900D1 DE69421900D1 (de) 2000-01-05
DE69421900T2 true DE69421900T2 (de) 2000-05-04

Family

ID=14392921

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69421900T Expired - Lifetime DE69421900T2 (de) 1993-04-08 1994-03-31 Hornwerkzeug zum umwandeln von längsvibrationen in torsionsvibrationen

Country Status (7)

Country Link
US (1) US5662766A (de)
EP (1) EP0664203B1 (de)
JP (1) JP2557310B2 (de)
KR (2) KR0145368B1 (de)
CA (1) CA2137698C (de)
DE (1) DE69421900T2 (de)
WO (1) WO1994023935A1 (de)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5782403A (en) * 1997-01-06 1998-07-21 International Business Machines Corporation Ultrasonic chip removal method and apparatus
GB9801983D0 (en) * 1998-01-30 1998-03-25 Young Michael J R Welding polymer fabrics using ultrasound
EP0962261A1 (de) * 1998-05-11 1999-12-08 Telsonic Ag Vorrichtung zum Behandeln von Fluiden und/oder Feststoffen
JP2003190180A (ja) * 2001-12-27 2003-07-08 Miwatec:Kk 複合振動超音波ハンドピ−ス
DE10249569B4 (de) * 2002-10-24 2005-03-17 Robert Bosch Gmbh Werkzeugkopf zum Befestigen eines elektrischen Leiters auf der Kontaktfläche eines Substrates und Verfahren zum Durchführen der Befestigung
FR2859409B1 (fr) * 2003-09-08 2006-06-16 Plastic Omnium Cie Ensemble d'une piece d'aspect d'un vehicule automobile et d'une autre piece solidarisee a la piece d'aspect par fusion de matiere et procede d'assemblage de ces pieces
US7819302B2 (en) * 2004-09-30 2010-10-26 The Boeing Company Aluminum end caps ultrasonically welded to end of aluminum tube
JP4677584B2 (ja) * 2005-02-21 2011-04-27 精電舎電子工業株式会社 振動姿態変換ホーン
EP1930148A1 (de) * 2006-12-07 2008-06-11 Telsonic Holding AG Verwendung einer Vorrichtung zum torsionalen Ultraschallschweissen
EP2269807A1 (de) * 2009-06-30 2011-01-05 Telsonic Holding AG Vorrichtung, Verwendung der Vorrichtung und Verfahren zum torsionalen Ultraschallschweissen
DE102010029395A1 (de) * 2010-05-07 2011-11-10 Telsonic Holding Ag Torsionssonotrode, Ultraschall-Schweißvorrichtung und Verfahren zur Herstellung einer Schweißverbindung mittels Ultraschall
EP2457683A1 (de) * 2010-11-25 2012-05-30 Telsonic Holding AG Torsionales Schweissen
KR101256605B1 (ko) * 2011-09-09 2013-04-19 한국표준과학연구원 곡률을 고려한 파형변환 진동초음파 공구혼 및 이를 이용한 비파괴 열화상 검사시스템 및 검사방법
JP7253910B2 (ja) * 2018-12-19 2023-04-07 ブランソン・ウルトラソニックス・コーポレーション 振動変換装置
EP3718647A1 (de) 2019-04-01 2020-10-07 Branson Ultraschall Niederlassung der Emerson Technologies GmbH & Co. oHG Torsionshorn und ultraschallbearbeitungsverfahren unter verwendung des torsionshorns
CN109909533A (zh) * 2019-04-22 2019-06-21 上海应用技术大学 一种智能纵扭复合超声铣削装置
EP3822018A1 (de) 2019-11-15 2021-05-19 Telsonic Holding AG Ultraschallkomponente, vorrichtung zum bearbeiten von werkstücken und verfahren zum bearbeiten von werkstücken
EP4058232A1 (de) 2019-11-15 2022-09-21 Telsonic Holding AG Ultraschallkomponente, vorrichtung zum bearbeiten von werkstücken und verfahren zum bearbeiten von werkstücken
EP4308311A1 (de) * 2021-03-19 2024-01-24 Telsonic Holding AG Ultraschallbooster und vorrichtung zum bearbeiten von werkstücken
US11839944B2 (en) * 2021-07-28 2023-12-12 Zhejiang University Floating non-contact ultrasonic enhanced flexible sub-aperture polishing device and method
CN114700544B (zh) * 2022-02-23 2023-12-12 重庆大学 一种纵扭弯耦合三维超声刀柄装置

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0198183B1 (de) * 1985-04-19 1992-08-12 Hitachi Maxell Ltd. Ultraschallmotor
JPS6292981A (ja) * 1985-10-18 1987-04-28 Konishiroku Photo Ind Co Ltd クリ−ニング装置
JPS6295981A (ja) * 1985-10-21 1987-05-02 Toyo Electric Mfg Co Ltd 超音波モ−タ
US4697117A (en) * 1985-11-27 1987-09-29 Taga Electric Co., Ltd. Rotary ultrasonic motor
US4703214A (en) * 1985-11-27 1987-10-27 Taga Electric Co., Ltd. Ultrasonic vibrator and its drive control method
US4812697A (en) * 1986-04-09 1989-03-14 Taga Electric Co., Ltd. Ultrasonic vibrator and a method of controllingly driving same
JPS62247870A (ja) * 1986-04-21 1987-10-28 多賀電気株式会社 超音波振動子の駆動制御方法
JPH074575B2 (ja) * 1988-12-26 1995-01-25 株式会社トーキン 捩り型振動子用圧電セラミック素子
JPH0433530A (ja) * 1990-05-30 1992-02-04 Toshiba Corp 回転電機
JPH065154Y2 (ja) * 1990-07-15 1994-02-09 精電舎電子工業株式会社 捩り振動用工具ホーン
JPH0622907B2 (ja) * 1990-11-29 1994-03-30 精電舎電子工業株式会社 プラスチックの伝達溶着法

Also Published As

Publication number Publication date
WO1994023935A1 (en) 1994-10-27
EP0664203A4 (de) 1996-06-12
US5662766A (en) 1997-09-02
DE69421900D1 (de) 2000-01-05
KR0145368B1 (ko) 1998-07-15
JP2557310B2 (ja) 1996-11-27
CA2137698A1 (en) 1994-10-27
KR950701275A (ko) 1995-03-23
JPH06293074A (ja) 1994-10-21
EP0664203A1 (de) 1995-07-26
CA2137698C (en) 1999-04-06
EP0664203B1 (de) 1999-12-01

Similar Documents

Publication Publication Date Title
DE69421900T2 (de) Hornwerkzeug zum umwandeln von längsvibrationen in torsionsvibrationen
DE69408110D1 (de) Pneumatisches Werkzeug mit Struktur zum Dämpfen von Lärm
DE69520599D1 (de) Hilfsmittel in der sauberkeitserziehung
DE69426770T2 (de) Werkzeug zum gebrauch inbohrlöchern
DE69532264D1 (de) Struktur zum Absorbieren von Stossenergie
DE59408538D1 (de) Elektrowerkzeug
DE69507262T2 (de) Auf schlagwerkzeugen angebrachte greif- und dämpfungsvorrichtung
DE69408881T2 (de) Fahrrad-Werkzeug
DE59305639D1 (de) Werkzeugeinspannschaft
DK0786416T3 (da) Plastklemme i to dele
DE69404131D1 (de) Planierhammer
KR950003260U (ko) 공구용 손잡이
DE59400155D1 (de) Handwerkzeug
ATA255693A (de) Drehwerkzeug
KR940023646U (ko) 교량진동을 이용한 발전장치
IT241957Y1 (it) Attrezzo per esercitarsi al pugilato
BR6900153U (pt) Disposicao construtiva aplicada em bibicleta
BR7300737U (pt) Disposição construtiva aplicada em cadernos en congêneres
BR7202100U (pt) Disposicao em ferramentas
KR950008351U (ko) 공구의 언클램핑 장치
KR950017158U (ko) 환봉파지용 지그
DE69226536D1 (de) Handwerkzeug zum anbringen von endringen an sicherheitskabeln
BR9302520A (pt) Disposicao construtiva em prendedor/modelador de cabelo
BR8904013A (pt) Processo de solda de filetes em sacos plasticos
KR940019228U (ko) 손잡이 겸용 자전거 경음기

Legal Events

Date Code Title Description
8364 No opposition during term of opposition