AR072602A1 - Fibras metalicas material no- tejido o malla uso de dichas fibras y procedimiento para producirlas - Google Patents

Fibras metalicas material no- tejido o malla uso de dichas fibras y procedimiento para producirlas

Info

Publication number
AR072602A1
AR072602A1 ARP090102814A ARP090102814A AR072602A1 AR 072602 A1 AR072602 A1 AR 072602A1 AR P090102814 A ARP090102814 A AR P090102814A AR P090102814 A ARP090102814 A AR P090102814A AR 072602 A1 AR072602 A1 AR 072602A1
Authority
AR
Argentina
Prior art keywords
fibers
boron
production
weight
phosphorus
Prior art date
Application number
ARP090102814A
Other languages
English (en)
Inventor
David Francis Lupton
Harald Manhardt
Uwe Jantsch
Stefan Vorberg
Original Assignee
Heraeus Gmbh W C
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 Heraeus Gmbh W C filed Critical Heraeus Gmbh W C
Publication of AR072602A1 publication Critical patent/AR072602A1/es

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
    • B01J23/40—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals of the platinum group metals
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
    • B01J23/40—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals of the platinum group metals
    • B01J23/46—Ruthenium, rhodium, osmium or iridium
    • B01J23/464—Rhodium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
    • B01J23/54—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
    • B01J23/56—Platinum group metals
    • B01J23/64—Platinum group metals with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
    • B01J23/652—Chromium, molybdenum or tungsten
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
    • B01J23/89—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with noble metals
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J35/00—Catalysts, in general, characterised by their form or physical properties
    • B01J35/30—Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J35/00—Catalysts, in general, characterised by their form or physical properties
    • B01J35/50—Catalysts, in general, characterised by their form or physical properties characterised by their shape or configuration
    • B01J35/56—Foraminous structures having flow-through passages or channels, e.g. grids or three-dimensional monoliths
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J35/00—Catalysts, in general, characterised by their form or physical properties
    • B01J35/50—Catalysts, in general, characterised by their form or physical properties characterised by their shape or configuration
    • B01J35/58—Fabrics or filaments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J35/00—Catalysts, in general, characterised by their form or physical properties
    • B01J35/60—Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J35/00—Catalysts, in general, characterised by their form or physical properties
    • B01J35/60—Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
    • B01J35/61—Surface area
    • B01J35/617—500-1000 m2/g
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/08—Heat treatment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/28—Phosphorising
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
    • B22F1/06—Metallic powder characterised by the shape of the particles
    • B22F1/062—Fibrous particles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/002—Manufacture of articles essentially made from metallic fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F9/00—Making metallic powder or suspensions thereof
    • B22F9/02—Making metallic powder or suspensions thereof using physical processes
    • B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B21/00—Nitrogen; Compounds thereof
    • C01B21/20—Nitrogen oxides; Oxyacids of nitrogen; Salts thereof
    • C01B21/24—Nitric oxide (NO)
    • C01B21/26—Preparation by catalytic or non-catalytic oxidation of ammonia
    • C01B21/265—Preparation by catalytic or non-catalytic oxidation of ammonia characterised by the catalyst
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
    • C01C3/00—Cyanogen; Compounds thereof
    • C01C3/02—Preparation, separation or purification of hydrogen cyanide
    • C01C3/0208—Preparation in gaseous phase
    • C01C3/0212—Preparation in gaseous phase from hydrocarbons and ammonia in the presence of oxygen, e.g. the Andrussow-process
    • C01C3/0216—Preparation in gaseous phase from hydrocarbons and ammonia in the presence of oxygen, e.g. the Andrussow-process characterised by the catalyst used
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C5/00—Alloys based on noble metals
    • C22C5/04—Alloys based on a platinum group metal
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
    • F01N3/28—Construction of catalytic reactors
    • F01N3/2803—Construction of catalytic reactors characterised by structure, by material or by manufacturing of catalyst support
    • F01N3/2807—Metal other than sintered metal
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
    • F01N3/28—Construction of catalytic reactors
    • F01N3/2803—Construction of catalytic reactors characterised by structure, by material or by manufacturing of catalyst support
    • F01N3/2835—Construction of catalytic reactors characterised by structure, by material or by manufacturing of catalyst support fibrous

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Toxicology (AREA)
  • Health & Medical Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • General Health & Medical Sciences (AREA)
  • Nanotechnology (AREA)
  • Thermal Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Metallurgy (AREA)
  • Catalysts (AREA)
  • Inorganic Fibers (AREA)
  • Powder Metallurgy (AREA)
  • Nonwoven Fabrics (AREA)

Abstract

Fibra metálica a base de uno o más elementos del grupo que comprende platino, paladio, rodio, rutenio, o iridio, con 0 hasta 0,30% en peso de uno o más elementos adicionales de aleacion del grupo que comprende níquel, cobalto, oro, renio, molibdeno y tungsteno, representa 1 a 500 ppm en peso de boro o fosforo de acuerdo a la invencion. Un material no-tejido o una malla, en particular para la produccion de oxido de nitrogeno o para la produccion de ácido cianhídrico, consiste de tales fibras. Para la produccion de fibras a base de materiales nobles con hasta 30% en peso de metales adicionales de aleacion por hilado de fibras a partir de una masa fundida, se reduce el punto de fusion de la masa fundida en al menos 400°C, antes de hilar las fibras, aleando adicionalmente el metal con boro o fosforo, y siendo removido el boro o fosforo nuevamente de las fibras.
ARP090102814A 2008-08-12 2009-07-23 Fibras metalicas material no- tejido o malla uso de dichas fibras y procedimiento para producirlas AR072602A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102008038611.1A DE102008038611B4 (de) 2008-08-12 2008-08-12 Metallfasern für Katalysatorvliese

Publications (1)

Publication Number Publication Date
AR072602A1 true AR072602A1 (es) 2010-09-08

Family

ID=41566632

Family Applications (1)

Application Number Title Priority Date Filing Date
ARP090102814A AR072602A1 (es) 2008-08-12 2009-07-23 Fibras metalicas material no- tejido o malla uso de dichas fibras y procedimiento para producirlas

Country Status (21)

Country Link
US (3) US8293678B2 (es)
EP (1) EP2310156A2 (es)
JP (1) JP2011530655A (es)
KR (1) KR20110052590A (es)
CN (1) CN102123803A (es)
AP (1) AP2011005564A0 (es)
AR (1) AR072602A1 (es)
AU (1) AU2009281449B2 (es)
BR (1) BRPI0917493A2 (es)
CA (1) CA2729968A1 (es)
CL (1) CL2011000068A1 (es)
CO (1) CO6300852A2 (es)
DE (1) DE102008038611B4 (es)
EA (1) EA201170324A1 (es)
IL (1) IL209976A0 (es)
MX (1) MX2011001462A (es)
PE (1) PE20110656A1 (es)
TW (1) TW201026386A (es)
UA (1) UA100758C2 (es)
WO (1) WO2010017894A2 (es)
ZA (1) ZA201101837B (es)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014226714A1 (de) 2014-12-19 2015-11-19 Heraeus Deutschland GmbH & Co. KG Katalysatorvlies
TWI744459B (zh) * 2017-01-16 2021-11-01 日商巴川製紙所股份有限公司 金屬纖維不織布
CN113457684A (zh) * 2021-06-30 2021-10-01 西部金属材料股份有限公司 一种非负载型甲醇重整制氢催化剂及其制备方法和应用
CN116446099B (zh) * 2023-03-13 2024-01-23 河北冀伽康新材料科技有限公司 一种合金钢材布料t恤衫的生产工艺

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4014692A (en) * 1976-01-09 1977-03-29 Owens-Corning Fiberglas Corporation Platinum-rhodium alloys having low creep rates
DE3136303A1 (de) 1981-09-12 1983-04-14 Vacuumschmelze Gmbh, 6450 Hanau Vorrichtung fuer die herstellung von metallband aus einer schmelze
US4396577A (en) * 1981-10-09 1983-08-02 General Electric Company Cobalt-palladium-silicon-boron brazing alloy
ATE73010T1 (de) 1988-10-12 1992-03-15 Johnson Matthey Plc Metallgewebe.
GB2273716B (en) * 1990-06-04 1994-10-12 Tanaka Electronics Ind Bonding wire for semiconductor device
DE4300791A1 (de) 1993-01-14 1994-07-21 Heraeus Gmbh W C Gewirk aus edelmetallhaltigen Drähten und Verfahren für seine Herstellung
JPH0813064A (ja) * 1994-07-01 1996-01-16 Tokuriki Honten Co Ltd 白金材料
DE19712625C2 (de) 1997-03-26 2003-02-20 Fraunhofer Ges Forschung Verfahren und Vorrichtung zur Herstellung eines Faserformkörpers
DE19757093C2 (de) 1997-12-20 2000-11-30 Max Planck Inst Eisenforschung Verfahren und Vorrichtung zum kontinuierlichen Gießen von Drähten mittels einer rotierenden Kreisringnut
DE19945742C1 (de) 1999-09-24 2000-10-19 Daimler Chrysler Ag Metallfaser-Katalysator und Herstellungsverfahren hierfür
DE10000097C2 (de) 2000-01-04 2001-11-08 Fraunhofer Ges Forschung Verfahren und Vorrichtung zur Metallfaserherstellung nach dem Schmelzextraktionsverfahren
DE10040591C1 (de) * 2000-08-15 2001-11-08 Heraeus Gmbh W C Verfahren zur Herstellung einer Beschichtung auf einem feuerfesten Bauteil und deren Verwendung
DE10105624A1 (de) * 2001-02-08 2002-10-02 Omg Ag & Co Kg Dreidimensionale, zwei-oder mehrlagig gestrickte Katalysatormetze für Gasreaktionen
GB0425152D0 (en) * 2004-11-15 2004-12-15 Middlesex Silver Co Ltd Fabric structure

Also Published As

Publication number Publication date
BRPI0917493A2 (pt) 2015-12-01
CL2011000068A1 (es) 2011-06-17
WO2010017894A2 (de) 2010-02-18
KR20110052590A (ko) 2011-05-18
CO6300852A2 (es) 2011-07-21
ZA201101837B (en) 2011-11-30
CN102123803A (zh) 2011-07-13
DE102008038611A1 (de) 2010-02-25
AU2009281449B2 (en) 2013-02-07
MX2011001462A (es) 2011-05-19
US20130040807A1 (en) 2013-02-14
US20110129406A1 (en) 2011-06-02
WO2010017894A4 (de) 2010-08-12
CA2729968A1 (en) 2010-02-18
AP2011005564A0 (en) 2011-02-28
TW201026386A (en) 2010-07-16
DE102008038611B4 (de) 2014-12-24
US8293678B2 (en) 2012-10-23
US20120251430A1 (en) 2012-10-04
AU2009281449A1 (en) 2010-02-18
PE20110656A1 (es) 2011-09-16
JP2011530655A (ja) 2011-12-22
EP2310156A2 (de) 2011-04-20
UA100758C2 (ru) 2013-01-25
EA201170324A1 (ru) 2011-08-30
WO2010017894A3 (de) 2010-06-10
IL209976A0 (en) 2011-02-28

Similar Documents

Publication Publication Date Title
AR072602A1 (es) Fibras metalicas material no- tejido o malla uso de dichas fibras y procedimiento para producirlas
JP6280532B2 (ja) 金合金製の時計又は宝飾品
PE20210162A1 (es) Analogos de incretina y sus usos
CR10922A (es) Derivados de indol como antagonistas receptores de s1p1
ATE384727T1 (de) Pyrimdobenzimidazolderivate und verwendung damit als agonisten oder antagonisten von melanocortinrezeptoren
CY1116892T1 (el) Ενωσεις οι οποιες εχουν δραστικοτητα ανταγωνιστη μουσκαρινικου υποδοχεα και αγωνιστη βητα2 αδρενεργικου υποδοχεα
UY26974A1 (es) Agonistas del receptor beta3 adrenérgico y usos de los mismos
CR8759A (es) 3-aminociclopentanocarboxamidas como moduladores de receptores quimioquinas
MX2010003001A (es) Derivados de quinolina como antagonistas del receptor de la 5-hidroxitriptamina 5a.
NI201000177A (es) Conjugados de factor ix con vidas medias prolongadas.
RU2010120135A (ru) Материал титанового сплава, конструктивный элемент и контейнер для радиоактивных отходов
WO2013012398A3 (en) Electrocatalytic composite(s), associated composition(s), and associated process(es)
PE20070711A1 (es) Derivados de piperazina utiles como antagonistas de ccr5
RU2501875C1 (ru) Сплав на основе золота
IN2012DN00764A (es)
CN105483499A (zh) 一种用于制作金属饰品的补口材料及金属饰品材料
TH118882A (th) เส้นใยโลหะสำหรับวัสดุที่ไม่ถักสานตัวเร่งปฏิกิริยา
RU2383640C1 (ru) Сплав на основе палладия
ES2640020T3 (es) Aleación para la producción de joyas
RU2501879C1 (ru) Сплав на основе золота
RU2500825C1 (ru) Сплав на основе золота
RU2514361C1 (ru) Сплав
RU2501876C1 (ru) Сплав на основе золота
RU2368686C1 (ru) Сплав на основе палладия
RU2501877C1 (ru) Сплав на основе золота

Legal Events

Date Code Title Description
FA Abandonment or withdrawal