AT285130B - Platte zur Schallabsorption und Schwingungsisolation - Google Patents

Platte zur Schallabsorption und Schwingungsisolation

Info

Publication number
AT285130B
AT285130B AT1062567A AT1062567A AT285130B AT 285130 B AT285130 B AT 285130B AT 1062567 A AT1062567 A AT 1062567A AT 1062567 A AT1062567 A AT 1062567A AT 285130 B AT285130 B AT 285130B
Authority
AT
Austria
Prior art keywords
plate
sound absorption
vibration isolation
isolation
vibration
Prior art date
Application number
AT1062567A
Other languages
English (en)
Original Assignee
Francais Isolants
Giraudeau Andre
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 Francais Isolants, Giraudeau Andre filed Critical Francais Isolants
Application granted granted Critical
Publication of AT285130B publication Critical patent/AT285130B/de

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F1/00Springs
    • F16F1/36Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers
    • F16F1/373Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers characterised by having a particular shape
    • F16F1/3737Planar, e.g. in sheet form
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01BPERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B1/00Ballastway; Other means for supporting the sleepers or the track; Drainage of the ballastway
    • E01B1/001Track with ballast
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01BPERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B19/00Protection of permanent way against development of dust or against the effect of wind, sun, frost, or corrosion; Means to reduce development of noise
    • E01B19/003Means for reducing the development or propagation of noise
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01BPERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B9/00Fastening rails on sleepers, or the like
    • E01B9/68Pads or the like, e.g. of wood, rubber, placed under the rail, tie-plate, or chair
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01BPERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B9/00Fastening rails on sleepers, or the like
    • E01B9/68Pads or the like, e.g. of wood, rubber, placed under the rail, tie-plate, or chair
    • E01B9/681Pads or the like, e.g. of wood, rubber, placed under the rail, tie-plate, or chair characterised by the material
    • E01B9/683Pads or the like, e.g. of wood, rubber, placed under the rail, tie-plate, or chair characterised by the material layered or composite
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01BPERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B9/00Fastening rails on sleepers, or the like
    • E01B9/68Pads or the like, e.g. of wood, rubber, placed under the rail, tie-plate, or chair
    • E01B9/685Pads or the like, e.g. of wood, rubber, placed under the rail, tie-plate, or chair characterised by their shape
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/82Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
    • E04B1/84Sound-absorbing elements
    • E04B1/86Sound-absorbing elements slab-shaped
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04CSTRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C2/00Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
    • E04C2/30Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure
    • E04C2/32Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure formed of corrugated or otherwise indented sheet-like material; composed of such layers with or without layers of flat sheet-like material
    • E04C2/324Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure formed of corrugated or otherwise indented sheet-like material; composed of such layers with or without layers of flat sheet-like material with incisions or reliefs in the surface
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F1/00Springs
    • F16F1/36Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers
    • F16F1/373Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers characterised by having a particular shape
    • F16F1/376Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers characterised by having a particular shape having projections, studs, serrations or the like on at least one surface
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F3/00Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic
    • F16F3/08Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic with springs made of a material having high internal friction, e.g. rubber
    • F16F3/087Units comprising several springs made of plastics or the like material
    • F16F3/0873Units comprising several springs made of plastics or the like material of the same material or the material not being specified
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01BPERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B9/00Fastening rails on sleepers, or the like
    • E01B9/68Pads or the like, e.g. of wood, rubber, placed under the rail, tie-plate, or chair
    • E01B9/685Pads or the like, e.g. of wood, rubber, placed under the rail, tie-plate, or chair characterised by their shape
    • E01B9/686Pads or the like, e.g. of wood, rubber, placed under the rail, tie-plate, or chair characterised by their shape with textured surface
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01BPERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B9/00Fastening rails on sleepers, or the like
    • E01B9/68Pads or the like, e.g. of wood, rubber, placed under the rail, tie-plate, or chair
    • E01B9/685Pads or the like, e.g. of wood, rubber, placed under the rail, tie-plate, or chair characterised by their shape
    • E01B9/688Pads or the like, e.g. of wood, rubber, placed under the rail, tie-plate, or chair characterised by their shape with internal cavities
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/82Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
    • E04B1/84Sound-absorbing elements
    • E04B2001/8414Sound-absorbing elements with non-planar face, e.g. curved, egg-crate shaped
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/82Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
    • E04B1/84Sound-absorbing elements
    • E04B2001/8457Solid slabs or blocks
    • E04B2001/8461Solid slabs or blocks layered
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/82Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
    • E04B1/84Sound-absorbing elements
    • E04B2001/8457Solid slabs or blocks
    • E04B2001/8461Solid slabs or blocks layered
    • E04B2001/8471Solid slabs or blocks layered with non-planar interior transition surfaces between layers, e.g. faceted, corrugated
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/82Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
    • E04B1/84Sound-absorbing elements
    • E04B2001/8457Solid slabs or blocks
    • E04B2001/8476Solid slabs or blocks with acoustical cavities, with or without acoustical filling
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/24Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24149Honeycomb-like
    • Y10T428/24157Filled honeycomb cells [e.g., solid substance in cavities, etc.]
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/24Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24174Structurally defined web or sheet [e.g., overall dimension, etc.] including sheet or component perpendicular to plane of web or sheet
    • Y10T428/24182Inward from edge of web or sheet
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/24Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24479Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness
    • Y10T428/24562Interlaminar spaces
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/24Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24744Longitudinal or transverse tubular cavity or cell

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Electromagnetism (AREA)
  • Building Environments (AREA)
  • Floor Finish (AREA)
  • Laminated Bodies (AREA)
  • Transducers For Ultrasonic Waves (AREA)
AT1062567A 1966-11-28 1967-11-24 Platte zur Schallabsorption und Schwingungsisolation AT285130B (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR3318A FR91197E (fr) 1966-11-28 1966-11-28 Plaque d'insonorisation et d'isolation vibratoire

Publications (1)

Publication Number Publication Date
AT285130B true AT285130B (de) 1970-10-12

Family

ID=9696194

Family Applications (1)

Application Number Title Priority Date Filing Date
AT1062567A AT285130B (de) 1966-11-28 1967-11-24 Platte zur Schallabsorption und Schwingungsisolation

Country Status (11)

Country Link
US (1) US3525417A (de)
JP (1) JPS5010048B1 (de)
AT (1) AT285130B (de)
BE (1) BE706938A (de)
CH (1) CH459514A (de)
DE (1) DE1625374B2 (de)
FR (1) FR91197E (de)
GB (1) GB1181569A (de)
GR (1) GR34113B (de)
NL (1) NL6716001A (de)
SE (1) SE330596B (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0745738A1 (de) * 1995-06-02 1996-12-04 Wiesner-Hager Baugruppe Ges.M.B.H. Akustikplatte sowie Verfahren zur Herstellung derselben

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Publication number Priority date Publication date Assignee Title
FR2148355B2 (de) * 1971-08-10 1974-09-06 Isolants Franca S
DE2318649C3 (de) * 1973-04-13 1981-11-05 Rudolfwalter Dipl.-Ing. 3000 Hannover Steinmeier Lagerplatte aus Gummi o.dgl. für Fugen in Bauwerken
US3991848A (en) * 1974-08-16 1976-11-16 Frigitemp Acoustical board
JPS53125447U (de) * 1977-03-15 1978-10-05
DE2750122A1 (de) * 1977-11-09 1979-05-10 Erich Munz Koerperschalldaemmleiste
FR2392807A1 (fr) * 1978-10-10 1978-12-29 Verre Tech Structure antivibratoire composite
DE2901988C2 (de) * 1979-01-19 1983-08-04 Walter 3014 Laatzen Battermann Unbewehrtes Elastomerlager
US4563374A (en) * 1981-10-19 1986-01-07 Gebr, Happich Gmbh Blow molded decorative or protective strip with temperature compensation
DE3300298A1 (de) * 1983-01-07 1984-07-19 Chemie-Werk Weinsheim Gmbh, 6520 Worms Plattenfoermiges teil mit koerperschalldaempfender und versteifender wirkung
US4566231A (en) * 1983-09-27 1986-01-28 The Boeing Company Vibration damping stiffener
US4522378A (en) * 1983-11-02 1985-06-11 Illinois Tool Works, Inc. Wiper motor mounting grommet
NL9000294A (nl) * 1990-02-07 1991-09-02 Willy Van Goubergen Trillingsdemper.
FR2708644B1 (fr) * 1993-08-06 1995-10-20 Hpk Lieges Panneau de liège aggloméré, en particulier pour isolation phonique et plaque de liège pour la formation de ce panneau.
DE4329615A1 (de) * 1993-09-02 1995-03-09 Calenberg Ingenieure Planmaesi Unbewehrtes Elastomerlager zum flächigen Abstützen von Baukonstruktionen und Bauwerksteilen
DE19823139C2 (de) * 1998-04-01 2000-09-07 Jerzy Lech Schalldämmende Innen- oder Außenwandbekleidung
US6759114B2 (en) * 2001-10-27 2004-07-06 Inteplast Group, Ltd Light weight board of improved surface flatness and process for production thereof
ITMI20012404A1 (it) * 2001-11-14 2003-05-14 Fip Induistriale S P A Dispositivo smorzante sottoballast particolarmente studiato per lineeferroviarie
DE102004063475A1 (de) * 2004-12-23 2006-07-06 Esz Wilfried Becker Gmbh Elastomerlager
DE102006043197B3 (de) * 2006-09-11 2008-04-30 Thyssenkrupp Steel Ag Strukturiertes Verbundblech
US20090314387A1 (en) * 2008-06-20 2009-12-24 Herndon H Brooks System and method for controlling interaction between surfaces
US8297403B2 (en) * 2010-11-05 2012-10-30 Webasto Roof Systems Panel mounting structure with sound reduction member
CN102166843A (zh) * 2010-12-28 2011-08-31 上海磁浮交通发展有限公司 一种高速磁浮列车轻质隔声地板构件
CN102996693A (zh) * 2012-10-19 2013-03-27 中山市嘉誉塑胶制品有限公司 一种减震片
FR3002610B1 (fr) * 2013-02-28 2015-08-07 3X Engineering Procede et dispositif de protection de pieces mecaniques
CN105113341A (zh) * 2015-09-09 2015-12-02 同济大学 一种轨下垫板结构和制作方法
EP3880945A1 (de) 2018-11-15 2021-09-22 Cummins Power Generation IP, Inc. Genset-gehäuse mit geringem akustischem rauschen
CN110468629A (zh) * 2019-08-28 2019-11-19 吴永芳 用于装配式轨道粘弹性垫层制造方法及设备、粘弹性垫层

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL70221C (de) *
US1172710A (en) * 1908-05-09 1916-02-22 John E Howe Insulating-block for building purposes.
US1870323A (en) * 1928-10-19 1932-08-09 Cattaneo Giustino Manufacture of insulating material
US2020639A (en) * 1932-07-25 1935-11-12 Ralph V Grayson Thermal insulation unit or board
US2192516A (en) * 1937-05-28 1940-03-05 Woodall Industries Inc Insulation sheet material
US2386502A (en) * 1942-10-15 1945-10-09 Gen Tire & Rubber Co Sound deadener
FR1117463A (fr) * 1954-01-09 1956-05-23 Werner Genest Ges Fuer Isolier Revêtement ou paroi d'insonorisation pour canaux de grande section destinés à conduire des courants de gaz ou d'air
US3087570A (en) * 1959-03-23 1963-04-30 Bolt Beranek & Newman Panel and the like of high acoustic transmission loss
US3216167A (en) * 1961-05-22 1965-11-09 United States Gypsum Co Prefabricated panel
US3176789A (en) * 1962-01-26 1965-04-06 Lighter Stephen Acoustic panels
DE1250202B (de) * 1964-08-21 1967-09-14 Lord Corporation Erie, Pa (V St A) Einrichtung zur Dampfung der Biegeschwmgungen einer Flache

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0745738A1 (de) * 1995-06-02 1996-12-04 Wiesner-Hager Baugruppe Ges.M.B.H. Akustikplatte sowie Verfahren zur Herstellung derselben
AT405069B (de) * 1995-06-02 1999-05-25 Wiesner Hager Baugruppe Gmbh Akustikplatte sowie verfahren zur herstellung derselben

Also Published As

Publication number Publication date
JPS5010048B1 (de) 1975-04-18
DE1625374B2 (de) 1977-03-17
DE1625374A1 (de) 1970-06-11
CH459514A (fr) 1968-07-15
NL6716001A (de) 1968-05-29
BE706938A (de) 1968-04-01
GR34113B (el) 1968-03-19
FR91197E (fr) 1968-04-26
SE330596B (de) 1970-11-23
US3525417A (en) 1970-08-25
GB1181569A (en) 1970-02-18

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Legal Events

Date Code Title Description
EIH Change in the person of patent owner
ELJ Ceased due to non-payment of the annual fee