AR197113A1 - Electrodo neutral para ser usado en procedimientos electroquirurgicos - Google Patents

Electrodo neutral para ser usado en procedimientos electroquirurgicos

Info

Publication number
AR197113A1
AR197113A1 AR246422A AR24642273A AR197113A1 AR 197113 A1 AR197113 A1 AR 197113A1 AR 246422 A AR246422 A AR 246422A AR 24642273 A AR24642273 A AR 24642273A AR 197113 A1 AR197113 A1 AR 197113A1
Authority
AR
Argentina
Prior art keywords
electro
surgical procedures
neutral electrode
neutral
electrode
Prior art date
Application number
AR246422A
Other languages
English (en)
Spanish (es)
Original Assignee
Ndm Corp
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 Ndm Corp filed Critical Ndm Corp
Application granted granted Critical
Publication of AR197113A1 publication Critical patent/AR197113A1/es

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/04—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating
    • A61B18/12—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by heating by passing a current through the tissue to be heated, e.g. high-frequency current
    • A61B18/14—Probes or electrodes therefor
    • A61B18/16—Indifferent or passive electrodes for grounding
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00—Electrotherapy; Circuits therefor
    • A61N1/02—Details
    • A61N1/04—Electrodes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2562/00—Details of sensors; Constructional details of sensor housings or probes; Accessories for sensors
    • A61B2562/12—Manufacturing methods specially adapted for producing sensors for in-vivo measurements
    • A61B2562/125—Manufacturing methods specially adapted for producing sensors for in-vivo measurements characterised by the manufacture of electrodes

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Veterinary Medicine (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Public Health (AREA)
  • Surgery (AREA)
  • Biomedical Technology (AREA)
  • General Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Molecular Biology (AREA)
  • Medical Informatics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Radiology & Medical Imaging (AREA)
  • Electrotherapy Devices (AREA)
  • Surgical Instruments (AREA)
  • Materials For Medical Uses (AREA)
AR246422A 1972-02-03 1973-02-05 Electrodo neutral para ser usado en procedimientos electroquirurgicos AR197113A1 (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US22310772A 1972-02-03 1972-02-03
US00328120A US3848600A (en) 1972-02-03 1973-01-30 Indifferent electrode in electrosurgical procedures and method of use

Publications (1)

Publication Number Publication Date
AR197113A1 true AR197113A1 (es) 1974-03-15

Family

ID=26917452

Family Applications (1)

Application Number Title Priority Date Filing Date
AR246422A AR197113A1 (es) 1972-02-03 1973-02-05 Electrodo neutral para ser usado en procedimientos electroquirurgicos

Country Status (8)

Country Link
US (1) US3848600A (ja)
JP (1) JPS6158177B2 (ja)
AR (1) AR197113A1 (ja)
CA (1) CA993958A (ja)
DE (1) DE2305220A1 (ja)
FR (1) FR2170227B1 (ja)
GB (1) GB1425851A (ja)
IT (1) IT983855B (ja)

Families Citing this family (118)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4067322A (en) * 1974-07-19 1978-01-10 Johnson Joseph H Disposable, pre-gel body electrodes
US4092985A (en) * 1974-11-25 1978-06-06 John George Kaufman Body electrode for electro-medical use
JPS51106381A (ja) * 1975-03-17 1976-09-21 Sanritsu Medeikaru Kk
US3989036A (en) * 1975-04-02 1976-11-02 Dia Medical System Co., Ltd. Biophysical electrode
US4126126A (en) * 1976-07-27 1978-11-21 C. R. Bard, Inc. Non-metallic pregelled electrode
US4164226A (en) * 1976-08-25 1979-08-14 Robert Tapper Iontophoretic burn-protection electrode structure
US4211222A (en) * 1976-08-25 1980-07-08 Robert Tapper Iontophoretic burn-protection method
US4088133A (en) * 1976-09-13 1978-05-09 Products International Company Electrode for electrosurgical procedure
WO1979000042A1 (en) * 1977-07-13 1979-02-08 A Mercuri Biomedical electrode assembly
US4166465A (en) * 1977-10-17 1979-09-04 Neomed Incorporated Electrosurgical dispersive electrode
US4200104A (en) * 1977-11-17 1980-04-29 Valleylab, Inc. Contact area measurement apparatus for use in electrosurgery
US4188927A (en) * 1978-01-12 1980-02-19 Valleylab, Inc. Multiple source electrosurgical generator
US4177817A (en) * 1978-02-01 1979-12-11 C. R. Bard, Inc. Dual terminal transcutaneous electrode
US4196737A (en) * 1978-04-21 1980-04-08 C. R. Bard, Inc. Transcutaneous electrode construction
CA1105565A (en) * 1978-09-12 1981-07-21 Kaufman (John G.) Hospital Products Ltd. Electrosurgical electrode
JPS5547828U (ja) * 1978-09-22 1980-03-28
GB2030453B (en) * 1978-10-03 1983-05-05 Tapper R Applying unidirectional elecric current to the skin of a living body
US4267840A (en) * 1979-01-08 1981-05-19 Johnson & Johnson Electrosurgical grounding pad
US4669468A (en) * 1979-06-15 1987-06-02 American Hospital Supply Corporation Capacitively coupled indifferent electrode
US4303073A (en) * 1980-01-17 1981-12-01 Medical Plastics, Inc. Electrosurgery safety monitor
US4494541A (en) * 1980-01-17 1985-01-22 Medical Plastics, Inc. Electrosurgery safety monitor
US4441500A (en) * 1980-04-17 1984-04-10 Ferris Manufacturing Corp. EKG Electrode
US4343308A (en) * 1980-06-09 1982-08-10 Gross Robert D Surgical ground detector
US4419998A (en) * 1980-08-08 1983-12-13 R2 Corporation Physiological electrode systems
US4416274A (en) * 1981-02-23 1983-11-22 Motion Control, Inc. Ion mobility limiting iontophoretic bioelectrode
US4387714A (en) * 1981-05-13 1983-06-14 Purdue Research Foundation Electrosurgical dispersive electrode
JPS58136357A (ja) * 1981-12-28 1983-08-13 ロス・ホルマン・ゾル 電気的心臓刺激を発生する装置
US4441501A (en) * 1982-03-08 1984-04-10 Ndm Corporation Medical electrode
JPS5946509U (ja) * 1983-08-17 1984-03-28 株式会社東京衛材研究所 電気メス用対極板
US4700710A (en) * 1985-03-12 1987-10-20 Murray Electronics Associates Limited Partnership Apertured adhesively applied body electrode apparatus and method
US4635641A (en) * 1985-10-16 1987-01-13 Murray Electronics Associates Limited Multi-element electrode
US4722726A (en) * 1986-02-12 1988-02-02 Key Pharmaceuticals, Inc. Method and apparatus for iontophoretic drug delivery
US4722761A (en) * 1986-03-28 1988-02-02 Baxter Travenol Laboratories, Inc. Method of making a medical electrode
US6956032B1 (en) 1986-04-18 2005-10-18 Carnegie Mellon University Cyanine dyes as labeling reagents for detection of biological and other materials by luminescence methods
EP0273167A1 (de) * 1986-11-26 1988-07-06 Siemens Aktiengesellschaft Leitfähige Zwischenlage für Elektroden
JPH0345739Y2 (ja) * 1986-12-31 1991-09-26
US4799480A (en) * 1987-08-04 1989-01-24 Conmed Electrode for electrosurgical apparatus
US5080099A (en) * 1988-08-26 1992-01-14 Cardiotronics, Inc. Multi-pad, multi-function electrode
US4955381A (en) * 1988-08-26 1990-09-11 Cardiotronics, Inc. Multi-pad, multi-function electrode
US5087241A (en) * 1990-07-24 1992-02-11 Empi, Inc. Iontophoresis electrode with reservoir and injection site
US5160316A (en) * 1990-09-10 1992-11-03 Henley Julian L Iontophoretic drug delivery apparatus
JPH04108559U (ja) * 1991-02-28 1992-09-18 株式会社クラレ 生体医学用の電極
US5566672A (en) * 1994-01-03 1996-10-22 Labeltape Meditect, Inc. Biomedical electrode
US7473251B2 (en) * 1996-01-05 2009-01-06 Thermage, Inc. Methods for creating tissue effect utilizing electromagnetic energy and a reverse thermal gradient
US20030212393A1 (en) * 1996-01-05 2003-11-13 Knowlton Edward W. Handpiece with RF electrode and non-volatile memory
US7115123B2 (en) * 1996-01-05 2006-10-03 Thermage, Inc. Handpiece with electrode and non-volatile memory
US7229436B2 (en) 1996-01-05 2007-06-12 Thermage, Inc. Method and kit for treatment of tissue
US7267675B2 (en) * 1996-01-05 2007-09-11 Thermage, Inc. RF device with thermo-electric cooler
EP0836864A3 (en) * 1996-10-18 2000-03-08 Graphic Controls Corporation Defibrillator electrode
CA2265857C (en) * 1996-10-30 2007-12-18 Megadyne Medical Products, Inc. Reusable electrosurgical return pad
US6544258B2 (en) 1996-10-30 2003-04-08 Mega-Dyne Medical Products, Inc. Pressure sore pad having self-limiting electrosurgical return electrode properties and optional heating/cooling capabilities
US6582424B2 (en) 1996-10-30 2003-06-24 Megadyne Medical Products, Inc. Capacitive reusable electrosurgical return electrode
US7166102B2 (en) * 1996-10-30 2007-01-23 Megadyne Medical Products, Inc. Self-limiting electrosurgical return electrode
US6053910A (en) 1996-10-30 2000-04-25 Megadyne Medical Products, Inc. Capacitive reusable electrosurgical return electrode
US6454764B1 (en) 1996-10-30 2002-09-24 Richard P. Fleenor Self-limiting electrosurgical return electrode
US6033399A (en) 1997-04-09 2000-03-07 Valleylab, Inc. Electrosurgical generator with adaptive power control
US6148231A (en) 1998-09-15 2000-11-14 Biophoretic Therapeutic Systems, Llc Iontophoretic drug delivery electrodes and method
US20040167508A1 (en) 2002-02-11 2004-08-26 Robert Wham Vessel sealing system
US7364577B2 (en) 2002-02-11 2008-04-29 Sherwood Services Ag Vessel sealing system
US7137980B2 (en) 1998-10-23 2006-11-21 Sherwood Services Ag Method and system for controlling output of RF medical generator
US7901400B2 (en) 1998-10-23 2011-03-08 Covidien Ag Method and system for controlling output of RF medical generator
US6792306B2 (en) 2000-03-10 2004-09-14 Biophoretic Therapeutic Systems, Llc Finger-mounted electrokinetic delivery system for self-administration of medicaments and methods therefor
US7127285B2 (en) 1999-03-12 2006-10-24 Transport Pharmaceuticals Inc. Systems and methods for electrokinetic delivery of a substance
US6477410B1 (en) 2000-05-31 2002-11-05 Biophoretic Therapeutic Systems, Llc Electrokinetic delivery of medicaments
US20030176908A1 (en) * 2002-03-18 2003-09-18 Hsin-Yi Lin Water-impregnable electrode for electrical stimulation device
EP1501435B1 (en) 2002-05-06 2007-08-29 Covidien AG Blood detector for controlling an esu
US7255694B2 (en) 2002-12-10 2007-08-14 Sherwood Services Ag Variable output crest factor electrosurgical generator
US7044948B2 (en) 2002-12-10 2006-05-16 Sherwood Services Ag Circuit for controlling arc energy from an electrosurgical generator
JP2006525096A (ja) 2003-05-01 2006-11-09 シャーウッド・サービシーズ・アクチェンゲゼルシャフト 電気手術用発生器システムのプログラム及び制御を行う方法及びシステム
EP1675499B1 (en) 2003-10-23 2011-10-19 Covidien AG Redundant temperature monitoring in electrosurgical systems for safety mitigation
US8104956B2 (en) 2003-10-23 2012-01-31 Covidien Ag Thermocouple measurement circuit
DE10350709A1 (de) * 2003-10-30 2005-08-18 Erbe Elektromedizin Gmbh Vorrichtung zur Koagulation von Gewebe
US7396336B2 (en) 2003-10-30 2008-07-08 Sherwood Services Ag Switched resonant ultrasonic power amplifier system
US7131860B2 (en) 2003-11-20 2006-11-07 Sherwood Services Ag Connector systems for electrosurgical generator
US7169145B2 (en) * 2003-11-21 2007-01-30 Megadyne Medical Products, Inc. Tuned return electrode with matching inductor
US7300435B2 (en) 2003-11-21 2007-11-27 Sherwood Services Ag Automatic control system for an electrosurgical generator
US7766905B2 (en) 2004-02-12 2010-08-03 Covidien Ag Method and system for continuity testing of medical electrodes
US7780662B2 (en) 2004-03-02 2010-08-24 Covidien Ag Vessel sealing system using capacitive RF dielectric heating
DE102004010940B4 (de) * 2004-03-05 2012-01-26 Erbe Elektromedizin Gmbh Neutralelektrode für die HF-Chirurgie
US7628786B2 (en) 2004-10-13 2009-12-08 Covidien Ag Universal foot switch contact port
US9474564B2 (en) 2005-03-31 2016-10-25 Covidien Ag Method and system for compensating for external impedance of an energy carrying component when controlling an electrosurgical generator
US8734438B2 (en) 2005-10-21 2014-05-27 Covidien Ag Circuit and method for reducing stored energy in an electrosurgical generator
US7947039B2 (en) 2005-12-12 2011-05-24 Covidien Ag Laparoscopic apparatus for performing electrosurgical procedures
CA2574934C (en) 2006-01-24 2015-12-29 Sherwood Services Ag System and method for closed loop monitoring of monopolar electrosurgical apparatus
EP3210557B1 (en) 2006-01-24 2018-10-17 Covidien AG System for tissue sealing
US9186200B2 (en) 2006-01-24 2015-11-17 Covidien Ag System and method for tissue sealing
US7513896B2 (en) 2006-01-24 2009-04-07 Covidien Ag Dual synchro-resonant electrosurgical apparatus with bi-directional magnetic coupling
US8216223B2 (en) 2006-01-24 2012-07-10 Covidien Ag System and method for tissue sealing
US8685016B2 (en) 2006-01-24 2014-04-01 Covidien Ag System and method for tissue sealing
CA2574935A1 (en) 2006-01-24 2007-07-24 Sherwood Services Ag A method and system for controlling an output of a radio-frequency medical generator having an impedance based control algorithm
US8147485B2 (en) 2006-01-24 2012-04-03 Covidien Ag System and method for tissue sealing
US7651493B2 (en) 2006-03-03 2010-01-26 Covidien Ag System and method for controlling electrosurgical snares
US7648499B2 (en) 2006-03-21 2010-01-19 Covidien Ag System and method for generating radio frequency energy
US7651492B2 (en) 2006-04-24 2010-01-26 Covidien Ag Arc based adaptive control system for an electrosurgical unit
US8753334B2 (en) 2006-05-10 2014-06-17 Covidien Ag System and method for reducing leakage current in an electrosurgical generator
AT503420B1 (de) * 2006-05-16 2007-10-15 Univ Wien Med Oberflächenelektrode
US8034049B2 (en) 2006-08-08 2011-10-11 Covidien Ag System and method for measuring initial tissue impedance
US7731717B2 (en) 2006-08-08 2010-06-08 Covidien Ag System and method for controlling RF output during tissue sealing
US7637907B2 (en) 2006-09-19 2009-12-29 Covidien Ag System and method for return electrode monitoring
US7794457B2 (en) 2006-09-28 2010-09-14 Covidien Ag Transformer for RF voltage sensing
JP2008198401A (ja) * 2007-02-08 2008-08-28 Fujitsu Ltd 静電気対策用リストバンドおよび静電気対策用リストバンドセット
DE202007006112U1 (de) * 2007-04-26 2008-09-18 Energy-Lab Technologies Gmbh Elektrode und Steckverbinder für Elektrode
US8777941B2 (en) 2007-05-10 2014-07-15 Covidien Lp Adjustable impedance electrosurgical electrodes
US7834484B2 (en) 2007-07-16 2010-11-16 Tyco Healthcare Group Lp Connection cable and method for activating a voltage-controlled generator
US8216220B2 (en) 2007-09-07 2012-07-10 Tyco Healthcare Group Lp System and method for transmission of combined data stream
US8512332B2 (en) 2007-09-21 2013-08-20 Covidien Lp Real-time arc control in electrosurgical generators
US20090228000A1 (en) * 2008-03-05 2009-09-10 Michael Cao Disposable Apparatus for Patient Grounding
US8226639B2 (en) 2008-06-10 2012-07-24 Tyco Healthcare Group Lp System and method for output control of electrosurgical generator
US8262652B2 (en) 2009-01-12 2012-09-11 Tyco Healthcare Group Lp Imaginary impedance process monitoring and intelligent shut-off
US8876812B2 (en) * 2009-02-26 2014-11-04 Megadyne Medical Products, Inc. Self-limiting electrosurgical return electrode with pressure sore reduction and heating capabilities
US9872719B2 (en) 2013-07-24 2018-01-23 Covidien Lp Systems and methods for generating electrosurgical energy using a multistage power converter
US9636165B2 (en) 2013-07-29 2017-05-02 Covidien Lp Systems and methods for measuring tissue impedance through an electrosurgical cable
US9867650B2 (en) 2013-12-26 2018-01-16 Megadyne Medical Products, Inc. Universal self-limiting electrosurgical return electrode
US10085791B2 (en) 2013-12-26 2018-10-02 Megadyne Medical Products, Inc. Universal self-limiting electrosurgical return electrode
DE102016109568B4 (de) * 2016-05-24 2017-12-14 Wearable Life Science Gmbh Elektrode zur Elektromuskelstimulierung, Bekleidungsstück, Verfahren zur Herstellung eines Bekleidungsstücks sowie Verwendung einer Elektrode
US11737822B2 (en) * 2018-07-24 2023-08-29 Avent, Inc. Dispersive return pad with phase change material for active thermal management during an ablation procedure
US20200138512A1 (en) * 2018-11-06 2020-05-07 Biosense Webster (Israel) Ltd. Attaining Higher Impedances for Large Indifferent Electrodes
EP4333693A1 (en) * 2021-05-03 2024-03-13 Avation Medical, Inc. Stimulation interface pads

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA675494A (en) * 1963-12-03 Theratron Corporation Electrode for electronic therapeutic and diagnostic equipment
US789161A (en) * 1903-09-30 1905-05-09 Samuel H Linn Dental electrode for medicamental diffusion.
GB190827796A (en) * 1908-12-21 1909-12-21 Wilhelm Rubiner Improvements in Electrodes particularly for use in the Therapeutic Application of Electricity under Water.
BE366145A (ja) * 1929-06-19
US1945867A (en) * 1932-04-27 1934-02-06 Technical Equipment Company High frequency oscillatory apparatus for electrotherapeutic and sterilization purposes
US2651304A (en) * 1950-10-19 1953-09-08 Relaxacizor Thermatone Inc Therapeutic electrode
US3048549A (en) * 1957-05-27 1962-08-07 Carsbie C Adams Electrode jelly
US2887112A (en) * 1957-08-15 1959-05-19 Sanborn Company Pad for skin preparation for electrocardiography and the like
US3027333A (en) * 1957-12-30 1962-03-27 Burton Parsons Chemicals Inc Electrically conductive emulsions
US3187745A (en) * 1961-08-01 1965-06-08 Melpar Inc Electrodes
US3265638A (en) * 1964-03-24 1966-08-09 Franklin Institute Electrolyte composition
DE1564103C3 (de) * 1966-12-31 1978-06-22 Hellige Gmbh, 7800 Freiburg Elektrolytisch leitende Paste zur Erniedrigung des Übergangwiderstandes an Körperelektroden für medizinische Anwendungen
US3568662A (en) * 1967-07-07 1971-03-09 Donald B Everett Method and apparatus for sensing bioelectric potentials
JPS529946B1 (ja) * 1968-12-18 1977-03-19
US3601126A (en) * 1969-01-08 1971-08-24 Electro Medical Systems Inc High frequency electrosurgical apparatus
AU1388870A (en) * 1969-05-02 1971-10-21 Sybron Corporation Inactive electrode
US3696807A (en) * 1970-02-13 1972-10-10 Mdm Corp Medical electrode with relatively rigid electrolyte cup
US3701346A (en) * 1971-01-04 1972-10-31 Bionetics Inc Medical electrode

Also Published As

Publication number Publication date
JPS6158177B2 (ja) 1986-12-10
US3848600B1 (ja) 1988-06-21
IT983855B (it) 1974-11-11
JPS49108885A (ja) 1974-10-16
GB1425851A (en) 1976-02-18
CA993958A (en) 1976-07-27
FR2170227A1 (ja) 1973-09-14
US3848600A (en) 1974-11-19
DE2305220A1 (de) 1973-08-09
FR2170227B1 (ja) 1978-06-23

Similar Documents

Publication Publication Date Title
AR197113A1 (es) Electrodo neutral para ser usado en procedimientos electroquirurgicos
DE7214841U (de) In koerpergewebe einschraubbare elektrodenanordnung
AR198826A1 (es) Metodo para aplicar microcapsulas en tejidos
AR203373A1 (es) Procedimiento para preparar 4-amino-quinazolinas
AR199469A1 (es) Conjunto mejorado de electrodo/electrolito para ser usado en la deteccion de potenciales bioelectricos
NO140235C (no) Elektrode til bruk i elektrokjemiske prosesser
AR195081A1 (es) Electrodos para procedimientos electroquimicos y metodos para su fabricacion
BR7302123D0 (pt) Aperfeicoamentos em ritmador cardiaco
AR207946A1 (es) Procedimiento para preparar 2-amino-metilenindanona
AR195908A1 (es) Composicion dentrifrica y metodo para obtenerla
AR194878A1 (es) Mejoras en celdas electroliticas y procedimiento para producirlas
AR206887A1 (es) Procedimiento para preparar nuevos d-2-halo-6-metil-8-cianometilergolinas
AR203866A1 (es) Procedimiento para preparar tetrahidro-imidazo-dibenzotiacepinas biologicamente activas
BR7304428D0 (pt) Aparelho aperfeicoado para produzir celulas e vacinas
IT955910B (it) Procedimento e apparecchiatura per ricavare scanalature in strade
AR197057A1 (es) Procedimiento para preparar 1- arilidenamino-4- (2 - oxo -3 - fenil - 3 - benzofuril) piperacinas
IT1003155B (it) Composizione utilizzabile per combattere cattivi odori e relativi procedimenti di trattamento
SE393963B (sv) I brevlador instoppbar ask
AR197809A1 (es) Nuevos colorante dioxacinicos y procedimiento para prepararlos
IT981430B (it) Coloranti monoazoici insolubili in acqua e procedimento per la loro preparazione
AR200994A1 (es) Procedimiento para preparar 3-fluor-d-alanina y su deuteroanalogo
AR205883A1 (es) Procedimiento y aparato para separar iones presentes en fluidos
IT954345B (it) Disazocoloranti insolubili in acqua e procedimento per la loro produzione ed aplicazione
IT994043B (it) Perfezionamenti in audiometri
BE806113A (fr) Statif utilise en rontgentomographie