GB1332372A - Cold rolled sheet steel joist - Google Patents

Cold rolled sheet steel joist

Info

Publication number
GB1332372A
GB1332372A GB243873A GB1332372DA GB1332372A GB 1332372 A GB1332372 A GB 1332372A GB 243873 A GB243873 A GB 243873A GB 1332372D A GB1332372D A GB 1332372DA GB 1332372 A GB1332372 A GB 1332372A
Authority
GB
United Kingdom
Prior art keywords
cold rolled
rolled sheet
sheet steel
steel joist
floor
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.)
Expired
Application number
GB243873A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hambro Structural Systems Ltd
Original Assignee
Hambro Structural Systems Ltd
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 Hambro Structural Systems Ltd filed Critical Hambro Structural Systems Ltd
Publication of GB1332372A publication Critical patent/GB1332372A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
    • E04G11/36—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for floors, ceilings, or roofs of plane or curved surfaces end formpanels for floor shutterings
    • E04G11/40—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for floors, ceilings, or roofs of plane or curved surfaces end formpanels for floor shutterings for coffered or ribbed ceilings
    • E04G11/42—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for floors, ceilings, or roofs of plane or curved surfaces end formpanels for floor shutterings for coffered or ribbed ceilings with beams of metal or prefabricated concrete which are not, or of which only the upper part is embedded
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
    • E04B5/17—Floor structures partly formed in situ
    • E04B5/23—Floor structures partly formed in situ with stiffening ribs or other beam-like formations wholly or partly prefabricated
    • E04B5/29—Floor structures partly formed in situ with stiffening ribs or other beam-like formations wholly or partly prefabricated the prefabricated parts of the beams consisting wholly of metal
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
    • E04B5/32—Floor structures wholly cast in situ with or without form units or reinforcements
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C3/06—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal with substantially solid, i.e. unapertured, web
    • E04C3/07—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal with substantially solid, i.e. unapertured, web at least partly of bent or otherwise deformed strip- or sheet-like material
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C3/08—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal with apertured web, e.g. with a web consisting of bar-like components; Honeycomb girders
    • E04C3/09—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal with apertured web, e.g. with a web consisting of bar-like components; Honeycomb girders at least partly of bent or otherwise deformed strip- or sheet-like material
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
    • E04G11/36—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for floors, ceilings, or roofs of plane or curved surfaces end formpanels for floor shutterings
    • E04G11/48—Supporting structures for shutterings or frames for floors or roofs
    • E04G11/50—Girders, beams, or the like as supporting members for forms
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G17/00—Connecting or other auxiliary members for forms, falsework structures, or shutterings
    • E04G17/14—Bracing or strutting arrangements for formwalls; Devices for aligning forms
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G17/00—Connecting or other auxiliary members for forms, falsework structures, or shutterings
    • E04G17/18—Devices for suspending or anchoring form elements to girders placed in ceilings, e.g. hangers
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
    • E04C2003/0408—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by assembly or the cross-section
    • E04C2003/0413—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by assembly or the cross-section being built up from several parts
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
    • E04C2003/0408—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by assembly or the cross-section
    • E04C2003/0421—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by assembly or the cross-section comprising one single unitary part
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
    • E04C2003/0426—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by material distribution in cross section
    • E04C2003/043—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by material distribution in cross section the hollow cross-section comprising at least one enclosed cavity
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
    • E04C2003/0426—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by material distribution in cross section
    • E04C2003/0434—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by material distribution in cross section the open cross-section free of enclosed cavities
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
    • E04C2003/0426—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by material distribution in cross section
    • E04C2003/0439—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by material distribution in cross section the cross-section comprising open parts and hollow parts
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
    • E04C2003/0443—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by substantial shape of the cross-section
    • E04C2003/0452—H- or I-shaped
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
    • E04C2003/0443—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by substantial shape of the cross-section
    • E04C2003/046—L- or T-shaped
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C2003/0404—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects
    • E04C2003/0443—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal beams, girders, or joists characterised by cross-sectional aspects characterised by substantial shape of the cross-section
    • E04C2003/0473—U- or C-shaped
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C2003/0486—Truss like structures composed of separate truss elements
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
    • E04C2003/0486—Truss like structures composed of separate truss elements
    • E04C2003/0491—Truss like structures composed of separate truss elements the truss elements being located in one single surface or in several parallel surfaces

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
  • Rod-Shaped Construction Members (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
  • Bridges Or Land Bridges (AREA)

Abstract

1332372 Joists HAMBRO STRUCTURAL SYSTEMS Ltd 19 May 1971 [28 May 1970 16 March 1971] 2438/73 Divided out of 1332371 Heading E1K A cold rolled sheet steel joist to be used as a floor shuttering support has a generally rectangular hollow lower chord 111, a flat web with longitudinally arranged holes 116 and a Z-sectioned upper chord 113. The holes 116 are for supporting bars 114 which in turn support the floor shutters 119. (For Figures see next column)
GB243873A 1970-05-28 1971-05-19 Cold rolled sheet steel joist Expired GB1332372A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CA84014 1970-05-28
CA107895 1971-03-16

Publications (1)

Publication Number Publication Date
GB1332372A true GB1332372A (en) 1973-10-03

Family

ID=25666417

Family Applications (2)

Application Number Title Priority Date Filing Date
GB1582171*[A Expired GB1332371A (en) 1970-05-28 1971-05-19 Shuttering
GB243873A Expired GB1332372A (en) 1970-05-28 1971-05-19 Cold rolled sheet steel joist

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB1582171*[A Expired GB1332371A (en) 1970-05-28 1971-05-19 Shuttering

Country Status (10)

Country Link
JP (4) JPS5240127B1 (en)
BE (1) BE767884A (en)
DE (2) DE2166992C3 (en)
ES (3) ES391700A1 (en)
FI (1) FI50443C (en)
FR (1) FR2090350B1 (en)
GB (2) GB1332371A (en)
IL (1) IL36780A (en)
NL (1) NL161536C (en)
NO (2) NO129696B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2128222A (en) * 1982-09-27 1984-04-26 Donn Inc Grid tee for a suspended ceiling
GB2181467A (en) * 1985-08-24 1987-04-23 Hadley Sections Limited Elongate sections
CN106884529A (en) * 2017-03-15 2017-06-23 中国水利水电第七工程局有限公司 A kind of high-altitude long-span steel vestibule underplate concrete suspends steel form and construction method in midair
CN112227199A (en) * 2020-09-22 2021-01-15 浙江大学 Toughness combined bridge deck plate composed of cold-bending Z-shaped steel

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3934994A (en) * 1974-05-30 1976-01-27 Ppg Industries, Inc. Control of thermal convection in a float glass forming chamber
CA1008691A (en) * 1974-06-11 1977-04-19 Felix F. Laurus Sheet metal joist
JPS52105831U (en) * 1976-02-04 1977-08-11
JPS55113878A (en) * 1979-02-22 1980-09-02 Daiei:Kk Cloisonne working method for table ware
DE3019744A1 (en) * 1980-05-23 1981-12-03 Ulrich Dipl.-Ing. 4992 Espelkamp Fiergolla ASSEMBLY STRUCTURAL JOINTS AS REINFORCED CONNECTION OF PRE-FABRED CEILING PANELS
US4584815A (en) * 1984-10-26 1986-04-29 Hambro Structural Systems Ltd. Flange hanger
JPH0714342Y2 (en) * 1990-03-27 1995-04-05 旭硝子株式会社 Functional glass
SE507062C2 (en) * 1995-10-09 1998-03-23 Erik Danielsson Routed reinforced concrete slab with sheet metal beams and ways of manufacturing the same
ITMI20040116A1 (en) * 2004-01-28 2004-04-28 Cassone Filippo Idone MODULAR DEVICE SYSTEMS FOR FORMWORK
US8288746B2 (en) 2005-10-28 2012-10-16 Nippon Sheet Glass Company, Limited Laminated glass with shade band
CN102912978A (en) * 2012-11-07 2013-02-06 中建三局第二建设工程有限责任公司 One-step forming temporary protection device for floor reserved hole and construction method
CN112227201B (en) * 2020-09-22 2022-04-29 浙江大学 Cold-formed steel toughness combined bridge deck with box-shaped ribs

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1138229A (en) * 1954-12-29 1957-06-11 Moderner Bau Bedarf G M B H Lightweight beam for floors with reinforced concrete

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2128222A (en) * 1982-09-27 1984-04-26 Donn Inc Grid tee for a suspended ceiling
GB2181467A (en) * 1985-08-24 1987-04-23 Hadley Sections Limited Elongate sections
CN106884529A (en) * 2017-03-15 2017-06-23 中国水利水电第七工程局有限公司 A kind of high-altitude long-span steel vestibule underplate concrete suspends steel form and construction method in midair
CN112227199A (en) * 2020-09-22 2021-01-15 浙江大学 Toughness combined bridge deck plate composed of cold-bending Z-shaped steel
CN112227199B (en) * 2020-09-22 2021-11-30 浙江大学 Toughness combined bridge deck plate composed of cold-bending Z-shaped steel

Also Published As

Publication number Publication date
NO129696B (en) 1974-05-13
DE2123351A1 (en) 1972-06-22
JPS4831736A (en) 1973-04-26
NO139279C (en) 1979-01-31
ES194091Y (en) 1975-04-01
JPS5514220B2 (en) 1980-04-15
NL7107204A (en) 1971-11-30
DE2166992B2 (en) 1979-01-04
JPS4831735A (en) 1973-04-26
BE767884A (en) 1971-10-18
NL161536B (en) 1979-09-17
ES391700A1 (en) 1974-06-01
FI50443C (en) 1976-03-10
ES194091U (en) 1974-12-16
JPS5320772B2 (en) 1978-06-28
JPS5428215B2 (en) 1979-09-14
ES194092U (en) 1974-12-16
NL161536C (en) 1980-02-15
DE2166992C3 (en) 1979-08-30
FR2090350A1 (en) 1972-01-14
JPS4831737A (en) 1973-04-26
NO139279B (en) 1978-10-23
FI50443B (en) 1975-12-01
GB1332371A (en) 1973-10-03
FR2090350B1 (en) 1974-09-27
DE2166992A1 (en) 1977-08-25
DE2123351B2 (en) 1977-09-01
IL36780A0 (en) 1971-07-28
ES194092Y (en) 1975-04-01
DE2123351C3 (en) 1978-05-03
IL36780A (en) 1974-09-10
JPS5240127B1 (en) 1977-10-11

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PE20 Patent expired after termination of 20 years