JPH06501599A - 聴覚装置用接触変換器アセンブリ - Google Patents
聴覚装置用接触変換器アセンブリInfo
- Publication number
- JPH06501599A JPH06501599A JP4501282A JP50128291A JPH06501599A JP H06501599 A JPH06501599 A JP H06501599A JP 4501282 A JP4501282 A JP 4501282A JP 50128291 A JP50128291 A JP 50128291A JP H06501599 A JPH06501599 A JP H06501599A
- Authority
- JP
- Japan
- Prior art keywords
- transducer assembly
- eardrum
- contact
- contact transducer
- permanent magnet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000013707 sensory perception of sound Effects 0.000 title claims description 39
- 210000003454 tympanic membrane Anatomy 0.000 claims description 119
- 238000000034 method Methods 0.000 claims description 23
- 239000000080 wetting agent Substances 0.000 claims description 19
- 238000006243 chemical reaction Methods 0.000 claims description 18
- 239000000560 biocompatible material Substances 0.000 claims description 10
- 230000001143 conditioned effect Effects 0.000 claims description 5
- 230000002463 transducing effect Effects 0.000 claims description 4
- 210000001015 abdomen Anatomy 0.000 claims 1
- 239000012528 membrane Substances 0.000 description 23
- 239000010410 layer Substances 0.000 description 21
- 239000000463 material Substances 0.000 description 20
- 239000000853 adhesive Substances 0.000 description 13
- 230000001070 adhesive effect Effects 0.000 description 12
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 8
- 210000000959 ear middle Anatomy 0.000 description 7
- 238000009434 installation Methods 0.000 description 7
- 241000878128 Malleus Species 0.000 description 5
- 210000002331 malleus Anatomy 0.000 description 5
- 238000006116 polymerization reaction Methods 0.000 description 5
- 230000004044 response Effects 0.000 description 5
- 229920005573 silicon-containing polymer Polymers 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 206010011878 Deafness Diseases 0.000 description 4
- 210000000988 bone and bone Anatomy 0.000 description 4
- 230000005672 electromagnetic field Effects 0.000 description 4
- 239000010408 film Substances 0.000 description 4
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 4
- 229910052737 gold Inorganic materials 0.000 description 4
- 239000010931 gold Substances 0.000 description 4
- 230000010370 hearing loss Effects 0.000 description 4
- 231100000888 hearing loss Toxicity 0.000 description 4
- 208000016354 hearing loss disease Diseases 0.000 description 4
- 210000001785 incus Anatomy 0.000 description 4
- 229910052759 nickel Inorganic materials 0.000 description 4
- 239000010409 thin film Substances 0.000 description 4
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 3
- 230000000712 assembly Effects 0.000 description 3
- 238000000429 assembly Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 210000003027 ear inner Anatomy 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 239000003292 glue Substances 0.000 description 3
- 239000006249 magnetic particle Substances 0.000 description 3
- 239000000178 monomer Substances 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 229910052761 rare earth metal Inorganic materials 0.000 description 3
- 150000002910 rare earth metals Chemical class 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 210000001519 tissue Anatomy 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 210000000613 ear canal Anatomy 0.000 description 2
- 210000000883 ear external Anatomy 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002480 mineral oil Substances 0.000 description 2
- 235000010446 mineral oil Nutrition 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 229920000058 polyacrylate Polymers 0.000 description 2
- 229920001296 polysiloxane Polymers 0.000 description 2
- 229910000938 samarium–cobalt magnet Inorganic materials 0.000 description 2
- 210000001050 stape Anatomy 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 238000001356 surgical procedure Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000009736 wetting Methods 0.000 description 2
- FMQPBWHSNCRVQJ-UHFFFAOYSA-N 1,1,1,3,3,3-hexafluoropropan-2-yl 2-methylprop-2-enoate Chemical compound CC(=C)C(=O)OC(C(F)(F)F)C(F)(F)F FMQPBWHSNCRVQJ-UHFFFAOYSA-N 0.000 description 1
- OZAIFHULBGXAKX-UHFFFAOYSA-N 2-(2-cyanopropan-2-yldiazenyl)-2-methylpropanenitrile Chemical compound N#CC(C)(C)N=NC(C)(C)C#N OZAIFHULBGXAKX-UHFFFAOYSA-N 0.000 description 1
- OZAIFHULBGXAKX-VAWYXSNFSA-N AIBN Substances N#CC(C)(C)\N=N\C(C)(C)C#N OZAIFHULBGXAKX-VAWYXSNFSA-N 0.000 description 1
- 206010052804 Drug tolerance Diseases 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- 241001600434 Plectroglyphidodon lacrymatus Species 0.000 description 1
- 239000004823 Reactive adhesive Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000006399 behavior Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000010382 chemical cross-linking Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- KPLQYGBQNPPQGA-UHFFFAOYSA-N cobalt samarium Chemical compound [Co].[Sm] KPLQYGBQNPPQGA-UHFFFAOYSA-N 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000002939 deleterious effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000026781 habituation Effects 0.000 description 1
- 239000003906 humectant Substances 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000003999 initiator Substances 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000012977 invasive surgical procedure Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 229920006254 polymer film Polymers 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 230000001568 sexual effect Effects 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000004936 stimulating effect Effects 0.000 description 1
- 210000002784 stomach Anatomy 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000013519 translation Methods 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
- H04R25/60—Mounting or interconnection of hearing aid parts, e.g. inside tips, housings or to ossicles
- H04R25/604—Mounting or interconnection of hearing aid parts, e.g. inside tips, housings or to ossicles of acoustic or vibrational transducers
- H04R25/606—Mounting or interconnection of hearing aid parts, e.g. inside tips, housings or to ossicles of acoustic or vibrational transducers acting directly on the eardrum, the ossicles or the skull, e.g. mastoid, tooth, maxillary or mandibular bone, or mechanically stimulating the cochlea, e.g. at the oval window
Landscapes
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Neurosurgery (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Prostheses (AREA)
- Eyeglasses (AREA)
- Electrophonic Musical Instruments (AREA)
- Transmitters (AREA)
- Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
- Manufacturing Of Printed Circuit Boards (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Reverberation, Karaoke And Other Acoustics (AREA)
- Circuit For Audible Band Transducer (AREA)
- Materials For Medical Uses (AREA)
- Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
- Adornments (AREA)
- Coupling Device And Connection With Printed Circuit (AREA)
- Braking Systems And Boosters (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US61027490A | 1990-11-07 | 1990-11-07 | |
| US610,274 | 1990-11-07 | ||
| PCT/US1991/008333 WO1992009181A1 (en) | 1990-11-07 | 1991-11-07 | Contact transducer assembly for hearing devices |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH06501599A true JPH06501599A (ja) | 1994-02-17 |
Family
ID=24444387
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4501282A Pending JPH06501599A (ja) | 1990-11-07 | 1991-11-07 | 聴覚装置用接触変換器アセンブリ |
Country Status (14)
| Country | Link |
|---|---|
| EP (1) | EP0556300B1 (enExample) |
| JP (1) | JPH06501599A (enExample) |
| KR (1) | KR100229086B1 (enExample) |
| AT (1) | ATE142072T1 (enExample) |
| AU (1) | AU651642B2 (enExample) |
| BR (1) | BR9107069A (enExample) |
| CA (1) | CA2095432A1 (enExample) |
| DE (1) | DE69121725T2 (enExample) |
| DK (1) | DK0556300T3 (enExample) |
| ES (1) | ES2092088T3 (enExample) |
| FI (1) | FI932056A0 (enExample) |
| HU (1) | HU9301331D0 (enExample) |
| NO (1) | NO931628D0 (enExample) |
| WO (1) | WO1992009181A1 (enExample) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004010733A1 (ja) * | 2002-07-24 | 2004-01-29 | Tohoku University | 補聴システム及び補聴方法 |
| JP2008508039A (ja) * | 2004-07-28 | 2008-03-21 | イヤーレンズ コーポレイション | 電磁ヒアリングデバイスのための改善された送信機および変換機 |
| JP2022519107A (ja) * | 2019-01-31 | 2022-03-18 | ヴィブロソニック ゲーエムベーハー | 鼓膜上に配置するための振動モジュール |
Families Citing this family (30)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DK116692A (da) * | 1992-09-21 | 1994-03-22 | Gn Danavox As | Fremgagnsmåde til fastgørelse af en elektro-akustisk anordning og elektro-akustisk anordning til brug ved fremgangsmåden |
| US5814095A (en) * | 1996-09-18 | 1998-09-29 | Implex Gmbh Spezialhorgerate | Implantable microphone and implantable hearing aids utilizing same |
| DE19923403C2 (de) | 1999-05-21 | 2002-11-14 | Phonak Ag Staefa | Vorrichtung zum mechanischen Ankoppeln eines in einer Mastoidhöhle implantierbaren elektromechanischen Hörgerätewandlers |
| KR100573622B1 (ko) * | 2002-12-13 | 2006-04-25 | 주식회사 뉴로바이오시스 | 적외선 통신 방식의 인공 와우 장치 |
| US7668325B2 (en) | 2005-05-03 | 2010-02-23 | Earlens Corporation | Hearing system having an open chamber for housing components and reducing the occlusion effect |
| EP2208367B1 (en) | 2007-10-12 | 2017-09-27 | Earlens Corporation | Multifunction system and method for integrated hearing and communiction with noise cancellation and feedback management |
| KR100977525B1 (ko) | 2008-04-11 | 2010-08-23 | 주식회사 뉴로바이오시스 | 적외선 통신 방식의 귓속형 인공 와우 장치 |
| WO2009155358A1 (en) | 2008-06-17 | 2009-12-23 | Earlens Corporation | Optical electro-mechanical hearing devices with separate power and signal components |
| KR101717034B1 (ko) | 2008-09-22 | 2017-03-15 | 이어렌즈 코포레이션 | 듣기용 밸런스드 아마추어 장치 및 방법 |
| DK2438768T3 (en) | 2009-06-05 | 2016-06-06 | Earlens Corp | Optically coupled acoustically mellemøreimplantatindretning |
| US9544700B2 (en) | 2009-06-15 | 2017-01-10 | Earlens Corporation | Optically coupled active ossicular replacement prosthesis |
| US8401214B2 (en) | 2009-06-18 | 2013-03-19 | Earlens Corporation | Eardrum implantable devices for hearing systems and methods |
| CN102640435B (zh) | 2009-06-18 | 2016-11-16 | 伊尔莱茵斯公司 | 光学耦合的耳蜗植入系统及方法 |
| CN102598715B (zh) | 2009-06-22 | 2015-08-05 | 伊尔莱茵斯公司 | 光耦合骨传导设备、系统及方法 |
| DK2446646T3 (en) | 2009-06-22 | 2019-02-04 | Earlens Corp | Hearing aid for coupling to the round window |
| WO2010151647A2 (en) | 2009-06-24 | 2010-12-29 | SoundBeam LLC | Optically coupled cochlear actuator systems and methods |
| US8845705B2 (en) | 2009-06-24 | 2014-09-30 | Earlens Corporation | Optical cochlear stimulation devices and methods |
| DK2656639T3 (da) | 2010-12-20 | 2020-06-29 | Earlens Corp | Anatomisk tilpasset øregangshøreapparat |
| US10034103B2 (en) | 2014-03-18 | 2018-07-24 | Earlens Corporation | High fidelity and reduced feedback contact hearing apparatus and methods |
| DK3169396T3 (da) | 2014-07-14 | 2021-06-28 | Earlens Corp | Glidende forspænding og peak-begrænsning for optiske høreapparater |
| US9924276B2 (en) | 2014-11-26 | 2018-03-20 | Earlens Corporation | Adjustable venting for hearing instruments |
| WO2017059240A1 (en) | 2015-10-02 | 2017-04-06 | Earlens Corporation | Drug delivery customized ear canal apparatus |
| US11350226B2 (en) | 2015-12-30 | 2022-05-31 | Earlens Corporation | Charging protocol for rechargeable hearing systems |
| WO2017116791A1 (en) | 2015-12-30 | 2017-07-06 | Earlens Corporation | Light based hearing systems, apparatus and methods |
| US10492010B2 (en) | 2015-12-30 | 2019-11-26 | Earlens Corporations | Damping in contact hearing systems |
| US20180077504A1 (en) | 2016-09-09 | 2018-03-15 | Earlens Corporation | Contact hearing systems, apparatus and methods |
| WO2018093733A1 (en) | 2016-11-15 | 2018-05-24 | Earlens Corporation | Improved impression procedure |
| WO2019173470A1 (en) | 2018-03-07 | 2019-09-12 | Earlens Corporation | Contact hearing device and retention structure materials |
| WO2019199680A1 (en) | 2018-04-09 | 2019-10-17 | Earlens Corporation | Dynamic filter |
| KR102170372B1 (ko) | 2019-08-13 | 2020-10-27 | 주식회사 세이포드 | 외이도 내 인체 조직에 음향 전달을 위한 사운드 앵커 및 이를 구비한 반이식형 보청기 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2044870C3 (de) * | 1970-09-10 | 1978-12-21 | Dietrich Prof. Dr.Med. 7400 Tuebingen Plester | Hörgeräteanordnung für die induktive Übertragung akustischer Signale |
| US4776322A (en) * | 1985-05-22 | 1988-10-11 | Xomed, Inc. | Implantable electromagnetic middle-ear bone-conduction hearing aid device |
| US4817607A (en) * | 1986-03-07 | 1989-04-04 | Richards Medical Company | Magnetic ossicular replacement prosthesis |
| US4944301A (en) * | 1988-06-16 | 1990-07-31 | Cochlear Corporation | Method for determining absolute current density through an implanted electrode |
| US4936305A (en) * | 1988-07-20 | 1990-06-26 | Richards Medical Company | Shielded magnetic assembly for use with a hearing aid |
| US5003608A (en) * | 1989-09-22 | 1991-03-26 | Resound Corporation | Apparatus and method for manipulating devices in orifices |
-
1991
- 1991-10-07 KR KR1019930701355A patent/KR100229086B1/ko not_active Expired - Fee Related
- 1991-11-07 DK DK92900360.6T patent/DK0556300T3/da active
- 1991-11-07 ES ES92900360T patent/ES2092088T3/es not_active Expired - Lifetime
- 1991-11-07 CA CA002095432A patent/CA2095432A1/en not_active Abandoned
- 1991-11-07 DE DE69121725T patent/DE69121725T2/de not_active Expired - Fee Related
- 1991-11-07 WO PCT/US1991/008333 patent/WO1992009181A1/en not_active Ceased
- 1991-11-07 EP EP92900360A patent/EP0556300B1/en not_active Expired - Lifetime
- 1991-11-07 AU AU90352/91A patent/AU651642B2/en not_active Ceased
- 1991-11-07 BR BR919107069A patent/BR9107069A/pt unknown
- 1991-11-07 AT AT92900360T patent/ATE142072T1/de not_active IP Right Cessation
- 1991-11-07 JP JP4501282A patent/JPH06501599A/ja active Pending
- 1991-11-07 HU HU931331A patent/HU9301331D0/hu unknown
-
1993
- 1993-05-05 NO NO931628A patent/NO931628D0/no unknown
- 1993-05-06 FI FI932056A patent/FI932056A0/fi not_active Application Discontinuation
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004010733A1 (ja) * | 2002-07-24 | 2004-01-29 | Tohoku University | 補聴システム及び補聴方法 |
| JP2008508039A (ja) * | 2004-07-28 | 2008-03-21 | イヤーレンズ コーポレイション | 電磁ヒアリングデバイスのための改善された送信機および変換機 |
| JP2022519107A (ja) * | 2019-01-31 | 2022-03-18 | ヴィブロソニック ゲーエムベーハー | 鼓膜上に配置するための振動モジュール |
Also Published As
| Publication number | Publication date |
|---|---|
| ES2092088T3 (es) | 1996-11-16 |
| NO931628D0 (no) | 1993-05-05 |
| WO1992009181A1 (en) | 1992-05-29 |
| HU9301331D0 (en) | 1993-09-28 |
| DE69121725T2 (de) | 1997-02-13 |
| AU9035291A (en) | 1992-06-11 |
| EP0556300A4 (en) | 1993-12-22 |
| EP0556300A1 (en) | 1993-08-25 |
| FI932056A0 (fi) | 1993-05-06 |
| ATE142072T1 (de) | 1996-09-15 |
| CA2095432A1 (en) | 1992-05-08 |
| KR100229086B1 (ko) | 1999-11-01 |
| DK0556300T3 (enExample) | 1997-02-10 |
| AU651642B2 (en) | 1994-07-28 |
| DE69121725D1 (de) | 1996-10-02 |
| BR9107069A (pt) | 1993-09-28 |
| EP0556300B1 (en) | 1996-08-28 |
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