CH393697A - Schallschluckender Plattenkörper - Google Patents

Schallschluckender Plattenkörper

Info

Publication number
CH393697A
CH393697A CH757661A CH757661A CH393697A CH 393697 A CH393697 A CH 393697A CH 757661 A CH757661 A CH 757661A CH 757661 A CH757661 A CH 757661A CH 393697 A CH393697 A CH 393697A
Authority
CH
Switzerland
Prior art keywords
plate body
sound absorbing
absorbing plate
sound
plate
Prior art date
Application number
CH757661A
Other languages
German (de)
English (en)
Inventor
Slayter Games
Morries Rees Willis
Theophile Feid Jack
Original Assignee
Owens Corning Fiberglass 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 Owens Corning Fiberglass Corp filed Critical Owens Corning Fiberglass Corp
Publication of CH393697A publication Critical patent/CH393697A/de

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/82—Heat, 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
    • E04B1/84—Sound-absorbing elements
    • E04B1/86—Sound-absorbing elements slab-shaped
    • 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
    • B29C63/00—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
    • B29C63/02—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor using sheet or web-like material
    • 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
    • B29C66/45—Joining of substantially the whole surface of the 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
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/003—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts characterised by the matrix material, e.g. material composition or physical properties
    • 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
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/06—Fibrous reinforcements only
    • B29C70/10—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres
    • B29C70/12—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of short length, e.g. in the form of a mat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • 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
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • 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
    • B29C66/71—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 composition of the plastics material of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2309/00—Use of inorganic materials not provided for in groups B29K2303/00 - B29K2307/00, as reinforcement
    • B29K2309/08—Glass
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2313/00—Use of textile products or fabrics as reinforcement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2709/00—Use of inorganic materials not provided for in groups B29K2703/00 - B29K2707/00, for preformed parts, e.g. for inserts
    • B29K2709/08—Glass
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0001—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular acoustical properties
    • B29K2995/0002—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular acoustical properties insulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0037—Other properties
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/82—Heat, 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
    • E04B2001/8245—Machines for manufacturing, shaping, piercing or filling sound insulating elements
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/82—Heat, 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
    • E04B1/84—Sound-absorbing elements
    • E04B2001/8457—Solid slabs or blocks
    • E04B2001/8461—Solid slabs or blocks layered
    • Y—GENERAL 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1052—Methods of surface bonding and/or assembly therefor with cutting, punching, tearing or severing
    • Y10T156/1059—Splitting sheet lamina in plane intermediate of faces
    • Y—GENERAL 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/17—Surface bonding means and/or assemblymeans with work feeding or handling means
    • Y10T156/1702—For plural parts or plural areas of single part
    • Y10T156/1744—Means bringing discrete articles into assembled relationship
    • Y10T156/1751—At least three articles
    • Y10T156/1754—At least two applied side by side to common base
    • Y—GENERAL 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/249921—Web or sheet containing structurally defined element or component
    • Y10T428/249953—Composite having voids in a component [e.g., porous, cellular, etc.]
    • Y10T428/249987—With nonvoid component of specified composition
    • Y10T428/249991—Synthetic resin or natural rubbers
    • Y10T428/249992—Linear or thermoplastic
    • Y—GENERAL 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31551—Of polyamidoester [polyurethane, polyisocyanate, polycarbamate, etc.]
    • Y10T428/31645—Next to addition polymer from unsaturated monomers
    • Y10T428/31649—Ester, halide or nitrile of addition polymer

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Acoustics & Sound (AREA)
  • Composite Materials (AREA)
  • Chemical & Material Sciences (AREA)
  • Architecture (AREA)
  • Textile Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Mathematical Physics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Laminated Bodies (AREA)
  • Building Environments (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
CH757661A 1960-06-30 1961-06-28 Schallschluckender Plattenkörper CH393697A (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US39924A US3092203A (en) 1960-06-30 1960-06-30 Sound absorbing fibrous board with plastic film covering

Publications (1)

Publication Number Publication Date
CH393697A true CH393697A (de) 1965-06-15

Family

ID=21908087

Family Applications (1)

Application Number Title Priority Date Filing Date
CH757661A CH393697A (de) 1960-06-30 1961-06-28 Schallschluckender Plattenkörper

Country Status (7)

Country Link
US (1) US3092203A (OSRAM)
BE (1) BE605416A (OSRAM)
CH (1) CH393697A (OSRAM)
DE (1) DE1471352C3 (OSRAM)
GB (1) GB921132A (OSRAM)
LU (1) LU40325A1 (OSRAM)
NL (1) NL266525A (OSRAM)

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3255843A (en) * 1959-10-02 1966-06-14 Owens Corning Fiberglass Corp Fibrous acoustical panel with continuously adhered surface film and method of making same
US3398811A (en) * 1961-08-28 1968-08-27 United States Gypsum Co Acoustical tile with vibratile membrane extending into fissures
US3196975A (en) * 1962-12-13 1965-07-27 Allied Chem Acoustic foam
US3211253A (en) * 1964-01-15 1965-10-12 Douglas Aircraft Co Inc Acoustical panel comprising a cellular core having a face thereof coated with fibers bridging the cells
US3239973A (en) * 1964-01-24 1966-03-15 Johns Manville Acoustical glass fiber panel with diaphragm action and controlled flow resistance
US3343329A (en) * 1964-05-14 1967-09-26 Arthur J Pohutsky Spacer-support clip for ceiling construction
US3493452A (en) * 1965-05-17 1970-02-03 Du Pont Apparatus and continuous process for producing fibrous sheet structures
US3340118A (en) * 1965-06-01 1967-09-05 Thomas R Patterson Method of making building products and the like
US3441465A (en) * 1966-09-28 1969-04-29 Owens Corning Fiberglass Corp Film faced fibrous body
US3513065A (en) * 1967-04-19 1970-05-19 Owens Corning Fiberglass Corp Film faced fibrous body
US3581453A (en) * 1969-01-02 1971-06-01 Owens Corning Fiberglass Corp Fibrous ceiling surfacing system
US3905855A (en) * 1972-11-01 1975-09-16 Owens Corning Fiberglass Corp Rigid fibrous panel and method of making same
US3948347A (en) * 1974-11-25 1976-04-06 Gallagher-Kaiser Corporation Acoustical panel
US4181450A (en) * 1976-04-02 1980-01-01 Akzona Incorporated Erosion control matting
US4219376A (en) * 1979-03-05 1980-08-26 L. E. Carpenter & Company, Inc. Flexible acoustical wall covering, method of making same, and wall panel employing same
FR2456854B1 (fr) * 1979-05-18 1986-03-28 Nissan Motor Organe, tel qu'un couvercle de moteur, proche du moteur d'une automobile, et procede de fabrication
JPS5773330U (OSRAM) * 1980-10-23 1982-05-06
US4666540A (en) * 1985-03-04 1987-05-19 Acoustic Industries, Inc. Method of refurbishing building panels
US4740257A (en) * 1985-03-04 1988-04-26 Acoustic Industries, Inc. Ceiling tile covering system
US4894102A (en) * 1985-03-04 1990-01-16 Kenneth F. Halls Method for refinishing building panels
AU622431B2 (en) * 1988-02-12 1992-04-09 Paroc Group Oy Ab Apparatus for the formation of an insulating material ply
FI79902C (fi) * 1988-02-12 1990-03-12 Partek Ab Anordning foer formande av ett isolerskikt.
DE3928018A1 (de) * 1989-08-24 1991-02-28 Gruenzweig & Hartmann Verfahren zur herstellung eines flaechenelementes zur absorption von elektromagnetischen wellen
US5115616A (en) * 1989-09-05 1992-05-26 Nixon Michael T Edgebanded acoustical panels
IT1262110B (it) * 1993-04-30 1996-06-19 Ilcamdecor S R L Procedimento per la produzione di elementi per mobili rivestiti con riempitivo espanso, semiespanso o sintetico ed elementi rivestiti ottenuti con tale procedimento
US5787677A (en) * 1995-10-18 1998-08-04 Owens Corning Fiberglas Technology, Inc. Garage door insulation system
US5965851A (en) * 1997-01-28 1999-10-12 Owens Corning Fiberglas Technology, Inc. Acoustically insulated apparatus
CA2760594C (en) * 2009-05-12 2016-03-08 Rockwool International A/S Sound insulating element and process for producing a sound insulating element
CN111688980B (zh) * 2020-05-21 2021-12-17 江西艾芬达暖通科技股份有限公司 一种外壳覆膜机

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2031900A (en) * 1933-04-07 1936-02-25 Edward J Miller Acoustical wall surfacing
US2045311A (en) * 1933-07-20 1936-06-23 United States Gypsum Co Acoustical wall covering
US2081952A (en) * 1934-12-17 1937-06-01 Johns Manville Acoustical construction
US2237032A (en) * 1938-02-19 1941-04-01 Pittsburgh Plate Glass Co Process of increasing the sound absorptive properties of cellular glass
US2338813A (en) * 1940-03-25 1944-01-11 Mitchell & Smith Inc Method of manufacturing sound deadening material
US2497912A (en) * 1945-08-13 1950-02-21 Owens Corning Fiberglass Corp Acoustic wall treatment with replaceable facing
US2694233A (en) * 1950-11-29 1954-11-16 Chester M Page Wall and ceiling tile
US2744044A (en) * 1953-06-18 1956-05-01 Midland Chemical Corp Laminar product and method of making the same
US2850109A (en) * 1954-04-27 1958-09-02 Benjamin Electric Mfg Co Light-permeable sound-absorbing panel
US2959242A (en) * 1954-12-21 1960-11-08 Bayer Ag Sound-absorbing system
US2809145A (en) * 1955-01-18 1957-10-08 Mcdermott Francis Roland Vibration-absorbing pad and process of manufacture
DE1044384B (de) * 1955-04-09 1958-11-20 Owens Corning Fiberglass Corp Mit einer Membran bespannte poroese Schallschluckplatte
US2868684A (en) * 1956-01-03 1959-01-13 Lof Glass Fibers Co Decorative acoustical materials
US2920357A (en) * 1956-04-26 1960-01-12 Walter M Ericson Ceiling with controlled ventilation

Also Published As

Publication number Publication date
BE605416A (fr) 1961-10-16
DE1471352C3 (de) 1974-04-18
NL266525A (OSRAM) 1900-01-01
LU40325A1 (OSRAM) 1961-08-28
US3092203A (en) 1963-06-04
DE1471352A1 (de) 1969-10-23
GB921132A (en) 1963-03-13

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