US3815504A - Method of making splinter shells, and splinter projectiles and splinter heads made according to this method - Google Patents

Method of making splinter shells, and splinter projectiles and splinter heads made according to this method Download PDF

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Publication number
US3815504A
US3815504A US00261817A US26181772A US3815504A US 3815504 A US3815504 A US 3815504A US 00261817 A US00261817 A US 00261817A US 26181772 A US26181772 A US 26181772A US 3815504 A US3815504 A US 3815504A
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United States
Prior art keywords
tubular body
splinter
splinters
bodies
tubular
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Expired - Lifetime
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US00261817A
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English (en)
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H Tieben
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Diehl Verwaltungs Stiftung
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Individual
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B12/00—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material
    • F42B12/02—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect
    • F42B12/20—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect of high-explosive type
    • F42B12/22—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect of high-explosive type with fragmentation-hull construction
    • F42B12/32—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect of high-explosive type with fragmentation-hull construction the hull or case comprising a plurality of discrete bodies, e.g. steel balls, embedded therein or disposed around the explosive charge

Definitions

  • a splinter shell and method of making same according to which at least two tubular bodies of strong but deformable material are coaxially arranged with regard to each other and located one within the other while being peripherally spaced from each other by the diameter of the desired splinter bodies to be incorporated in the shell, whereupon the splinter bodies are introduced between .the tubular bodies and, while the outermost tubular body is confined on its outside, the inner peripheral surface of the innermost tubular body is subjected to radially outwardly directed pressure to cause all of the tubular bodies to deform partially around the splinter bodies and to sandwich the same between the adjacent tubular bodies.
  • the present invention relates toa method of making splinter shells while using preformed, preferably ballshaped or pellet-like splinters, and also concerns splinter projectiles and splinter heads made according to thismethod.
  • a second metallic tubular body having an outer diameter which is smaller than the inner diameter of the outer tubular body by twice the maximum diameter of the splinters is centrally inserted into the first tubular body.
  • the splinter filling is poured into the thus formed tubu- Vlar cylindrical chamber, and finally by high pressure deformation the inner tubular body isby pressing its walls in' between the splinters deformed radially outwardly with regard to the rotation symmetric splinter shell and together with the outer tubular-body is plated so as to form a rotation symmetric splinter shell with a splinter mantle arranged in the boundary region of the tubes.
  • a one-layer or a multi-layer splinter mantle may be produced.
  • multi-layer splinter bodies forinstance, two or more tubes which are narrower by twice the splinter diameter are centrally arranged one within the other.
  • the tubular cylindrical hollow chambers are then filled with splinter bodies and the tubes are plated upon each other while fully enclosing the splinters and while simultaneously prefragmenting the tubes into splinter elements of a predetermined size and mass.
  • the twist projectile 1 comprises a splinter shell2 forming the projectile mantle which houses an explosive charge 3 adapted to be ignited by a fuse 4.
  • a splinter shell2 forming the projectile mantle which houses an explosive charge 3 adapted to be ignited by a fuse 4.
  • FIG. 1 is a side view of a twist projectile, partly in section.
  • FIG. 2 is a cutout of a one-layer splinter shell prior to its high pressure deformation.
  • FIG. 3 is a partial cutout of FIG. 2 after plating the tubes upon each other.-
  • outer tube 6 of deformable metal for instance extra strong aluminum or steel, with a wall thickness of, for instance, 3 mm, a layer of preformed pellet splinters 7 of ceramic (A1 0 or hard metal,
  • splinters 7 may, if desired, also have a shape differing from the shape of a sphere, for instance, may be roller-shaped. It is important in this connection that the hollow chamber 5 between the tubes 6 and 8 is uniformly filled with one layer of splinters- 7.
  • the tubes 6 and 8 are interconnected in conformity with the above described method.
  • the radial deformation may be effected in a manner known per se and, more specifically, in a shock-like manner, for instance, by explosion deformation or electromagnetically, but it may also be effected, if desired, by pressing, namely by driving a conical calibrating bolt through the inner tube 8.
  • pressing namely by driving a conical calibrating bolt through the inner tube 8.
  • the splinter shell may also consist of a plurality of layers in which instance the manufacturing process corresponds to that described above.
  • an additional inner tube is provided in addition to the tubes 6 and 8.
  • a further layer of pellet splinters 7 is filled into the tubular hollow chamber 9.
  • the pellet splinters 7 are fully pressed into the tubes 6, 8 and 10 and these tubes are prenotched in a grate-like manner.
  • FIG. 6 shows the size of the broken up splinters 11 with regard to the pellet splinters 7.
  • the method according to the present invention makes it possible to produce splinter shells which comprise two or more tubes which are plated upon each other and which by means of the enclosed pellet splinters are pre-fragmented and encase one or more layers of pellet splinters.
  • These splinter shells will then be able, when applied to twist projectiles, to withstand the shearing and centrifugal forces occurring during the firing process. Therefore, they are able directly to form the mantle of the projectile.
  • a method of making a splinter shell for use in pro- 5 jectiles which includes the steps of: preparing a first during the detonation of the explosive charge not only the pellet splinters will be freed but also the tubes will be split-up into many substantially uniform splinters of a predetermined size which with a defined piercing capability are sprayed over a limited range.
  • the present invention is, by no means, limited to the method set forth above and the splinter bodies shown in the drawing but metallic tubular body to form the outer wall of the splinter shell to be made. inserting into said first tubular body a second metallic tubular body of an outer diameter less than the inner diameter of said first tubular first and second tubular bodies partially into said annular chamber and sandwiching said splinters between said first and second tubular bodies.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Powder Metallurgy (AREA)
  • Disintegrating Or Milling (AREA)
  • Extrusion Of Metal (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
US00261817A 1971-06-12 1972-06-12 Method of making splinter shells, and splinter projectiles and splinter heads made according to this method Expired - Lifetime US3815504A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2129196A DE2129196C3 (de) 1971-06-12 1971-06-12 Splitterkörper für Splittergeschosse und -gefechtskopfe

Publications (1)

Publication Number Publication Date
US3815504A true US3815504A (en) 1974-06-11

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ID=5810573

Family Applications (1)

Application Number Title Priority Date Filing Date
US00261817A Expired - Lifetime US3815504A (en) 1971-06-12 1972-06-12 Method of making splinter shells, and splinter projectiles and splinter heads made according to this method

Country Status (11)

Country Link
US (1) US3815504A (enrdf_load_stackoverflow)
AT (1) AT316356B (enrdf_load_stackoverflow)
BE (1) BE784623A (enrdf_load_stackoverflow)
CH (1) CH556014A (enrdf_load_stackoverflow)
DE (1) DE2129196C3 (enrdf_load_stackoverflow)
FR (1) FR2151826A5 (enrdf_load_stackoverflow)
GB (1) GB1364782A (enrdf_load_stackoverflow)
IT (1) IT956381B (enrdf_load_stackoverflow)
NL (1) NL7207380A (enrdf_load_stackoverflow)
NO (1) NO130205B (enrdf_load_stackoverflow)
SE (1) SE393186B (enrdf_load_stackoverflow)

Cited By (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4016816A (en) * 1975-06-20 1977-04-12 Forenade Fabriksverken Shell especially for mortars
US4032335A (en) * 1974-12-19 1977-06-28 Sintermetallwerk Krebsoege Gmbh Process for making metallic, molded composite bodies
US4174665A (en) * 1976-07-23 1979-11-20 Industrie-Werke Karlsruhe Augsburg Aktiengesellschaft Land mine construction particularly an antipersonnel splinter mine
US4292829A (en) * 1978-12-06 1981-10-06 Diehl Gmbh & Co. Process for the production of metallic formed members
US4296180A (en) * 1978-12-06 1981-10-20 Diehl Gmbh & Co. Process for the production of metallic formed members
US4327643A (en) * 1978-12-27 1982-05-04 Fernando Lasheras Barrios Anti-aircraft projectile with base, high-explosive body, and ogive
US4365560A (en) * 1979-09-11 1982-12-28 Etablissement Salgad Fin-stabilized projectile
US4644867A (en) * 1984-04-02 1987-02-24 Aktiebolaget Bofors Shell case with non-compressible fragments metallurgically bonded to the casing
USH1047H (en) 1991-08-05 1992-05-05 The United States Of America As Represented By The Secretary Of The Navy Fragmenting notched warhead rod
USH1048H (en) 1991-08-05 1992-05-05 The United States Of America As Represented By The Secretary Of The Navy Composite fragmenting rod for a warhead case
US5117759A (en) * 1991-08-05 1992-06-02 The United States Of America As Represented By The Secretary Of The Navy Filamentary composite dual wall warhead
US5119730A (en) * 1991-08-05 1992-06-09 The United States Of America As Represented By The Secretary Of The Navy Composite sheet stringer ordnance section
EP0831291A1 (de) * 1996-09-19 1998-03-25 DIEHL GMBH & CO. Handgranate mit vorgefertigten Splittern
US5817970A (en) * 1996-08-13 1998-10-06 Daimler-Benz Aerospace Ag Projectile, especially for nonlethal active components
US6276278B1 (en) * 1995-10-05 2001-08-21 Bofors Ab Arrangement for combating air targets
US20040089185A1 (en) * 2000-07-03 2004-05-13 Torsten Ronn Device for warhead charges for cargo ammunition units
WO2009102254A1 (en) * 2008-02-14 2009-08-20 Bae Systems Bofors Ab Splinter shell and method for producing the same
DE10328156B3 (de) * 2003-06-16 2014-03-13 Bae Systems Bofors Ab Verfahren zum Herstellen von Gefechtsköpfen, die Sprengstoffe enthalten
US8689669B2 (en) 2003-04-30 2014-04-08 Bofors Defence Ab Method of producing warheads containing explosives
US20160377396A1 (en) * 2014-02-11 2016-12-29 Raytheon Company Munition with multiple fragment layers
WO2017120684A1 (en) * 2016-01-15 2017-07-20 Saab Bofors Dynamics Switzerland Ltd Warhead
WO2017120686A1 (en) * 2016-01-15 2017-07-20 Saab Bofors Dynamics Switzerland Ltd Warhead
US20180252508A1 (en) * 2017-03-06 2018-09-06 Omnitek Partners Llc High Explosive Fragmentation Mortars
WO2019112502A1 (en) * 2017-12-05 2019-06-13 Bae Systems Bofors Ab Warhead
US10502538B1 (en) * 2015-06-17 2019-12-10 Bae Systems Bofors Ab Pre-fragmentation of warhead
US10634472B1 (en) * 2016-03-22 2020-04-28 Northrop Grumman Innovation Systems, Inc. Prefragmented warheads with enhanced performance
US11041704B1 (en) 2017-07-25 2021-06-22 The United States Of America As Represented By The Secretary Of The Army Method of manufacturing composite projectile body embedded with preformed fragments
SE2000234A1 (en) * 2020-12-14 2022-06-15 Saab Ab A fragmentation warhead a method of manufacturing of a fragmentation warhead
US11614311B1 (en) 2016-03-22 2023-03-28 Northrop Grumman Systems Corporation Prefragmented warheads with enhanced performance
US12072171B1 (en) 2016-03-22 2024-08-27 Northrop Grumman Systems Corporation Prefragmented warheads with enhanced performance
WO2024144979A3 (en) * 2022-12-05 2024-09-26 Breault Research Organization, Inc. Enhanced lethality warhead
US12135196B2 (en) 2020-02-28 2024-11-05 Bae Systems Bofors Ab Method for producing a component for a warhead, and warhead
US12276486B2 (en) 2021-05-19 2025-04-15 Bae Systems Bofors Ab Method for producing a warhead component

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7701244A (nl) * 1976-03-23 1977-09-27 Diehl Fa Splinterhuls voor granaat-gevechtskop en dergelijke.
BE889289A (fr) * 1981-06-18 1981-12-18 Prb N V Prb Sa Tete creuse a fragmentation controlee pour engin explosif
ES469500A1 (es) * 1978-05-05 1979-02-16 Amado Laguna De Rins Sa Mejoras en la construccion de proyectiles antiaereos
DE2852659A1 (de) * 1978-12-06 1980-06-19 Diehl Gmbh & Co Verfahren zur herstellung metallischer formkoerper
FR2504253B1 (fr) * 1981-04-15 1987-01-02 Haut Rhin Manufacture Machines Charge explosive comportant une enveloppe renfermant des eclats prefragmentes et procede de fabrication
DE8218940U1 (de) * 1982-07-02 1986-10-16 Rheinmetall GmbH, 4000 Düsseldorf Sprenggeschoß mit einer ein- oder mehrschichtigen Außenhülle
GB8329526D0 (en) * 1983-11-04 1983-12-07 Wimet Ltd Pellets
AT382236B (de) * 1982-10-11 1987-01-26 Ver Edelstahlwerke Ag Verfahren zur herstellung eines splitterkoerpers und danach hergestellter splitterkoerper
FR2598214B1 (fr) * 1986-05-05 1990-01-05 Luchaire Sa Procede pour la realisation de munitions a effet d'eclats et munitions obtenues par ce procede
GB2236833B (en) * 1989-10-11 1994-03-16 Dynamit Nobel Ag Warhead with enhanced fragmentation effect
DE4308027A1 (de) * 1993-03-13 1994-09-15 Diehl Gmbh & Co Splitterkörper für Splittergeschosse und Verfahren zur Herstellung eines Splittergeschosses
DE19855537C2 (de) * 1998-08-27 2002-08-29 Rheinmetall W & M Gmbh Verfahren zur Herstellung eines Sprenggeschosses

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1234657A (en) * 1917-04-21 1917-07-24 Andrew W Graham Projectile.
GB133076A (en) * 1916-01-15 1919-10-09 Societa Anonima Meccanica Lombarda Improvements in or relating to artillery projectiles
US2564751A (en) * 1945-05-19 1951-08-21 Lawrence H Cook Grenade
US2724334A (en) * 1949-12-12 1955-11-22 William C Norton High velocity armor piercing shot

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB133076A (en) * 1916-01-15 1919-10-09 Societa Anonima Meccanica Lombarda Improvements in or relating to artillery projectiles
US1234657A (en) * 1917-04-21 1917-07-24 Andrew W Graham Projectile.
US2564751A (en) * 1945-05-19 1951-08-21 Lawrence H Cook Grenade
US2724334A (en) * 1949-12-12 1955-11-22 William C Norton High velocity armor piercing shot

Cited By (53)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4032335A (en) * 1974-12-19 1977-06-28 Sintermetallwerk Krebsoege Gmbh Process for making metallic, molded composite bodies
US4016816A (en) * 1975-06-20 1977-04-12 Forenade Fabriksverken Shell especially for mortars
US4174665A (en) * 1976-07-23 1979-11-20 Industrie-Werke Karlsruhe Augsburg Aktiengesellschaft Land mine construction particularly an antipersonnel splinter mine
US4292829A (en) * 1978-12-06 1981-10-06 Diehl Gmbh & Co. Process for the production of metallic formed members
US4296180A (en) * 1978-12-06 1981-10-20 Diehl Gmbh & Co. Process for the production of metallic formed members
US4327643A (en) * 1978-12-27 1982-05-04 Fernando Lasheras Barrios Anti-aircraft projectile with base, high-explosive body, and ogive
US4365560A (en) * 1979-09-11 1982-12-28 Etablissement Salgad Fin-stabilized projectile
US4644867A (en) * 1984-04-02 1987-02-24 Aktiebolaget Bofors Shell case with non-compressible fragments metallurgically bonded to the casing
USH1047H (en) 1991-08-05 1992-05-05 The United States Of America As Represented By The Secretary Of The Navy Fragmenting notched warhead rod
USH1048H (en) 1991-08-05 1992-05-05 The United States Of America As Represented By The Secretary Of The Navy Composite fragmenting rod for a warhead case
US5117759A (en) * 1991-08-05 1992-06-02 The United States Of America As Represented By The Secretary Of The Navy Filamentary composite dual wall warhead
US5119730A (en) * 1991-08-05 1992-06-09 The United States Of America As Represented By The Secretary Of The Navy Composite sheet stringer ordnance section
US6276278B1 (en) * 1995-10-05 2001-08-21 Bofors Ab Arrangement for combating air targets
US5817970A (en) * 1996-08-13 1998-10-06 Daimler-Benz Aerospace Ag Projectile, especially for nonlethal active components
EP0831291A1 (de) * 1996-09-19 1998-03-25 DIEHL GMBH & CO. Handgranate mit vorgefertigten Splittern
US20040089185A1 (en) * 2000-07-03 2004-05-13 Torsten Ronn Device for warhead charges for cargo ammunition units
US7156024B2 (en) * 2000-07-03 2007-01-02 Bae Systems Bofors Ab Device for warhead charges for cargo ammunition units
US8689669B2 (en) 2003-04-30 2014-04-08 Bofors Defence Ab Method of producing warheads containing explosives
DE10328156B3 (de) * 2003-06-16 2014-03-13 Bae Systems Bofors Ab Verfahren zum Herstellen von Gefechtsköpfen, die Sprengstoffe enthalten
WO2009102254A1 (en) * 2008-02-14 2009-08-20 Bae Systems Bofors Ab Splinter shell and method for producing the same
US20160377396A1 (en) * 2014-02-11 2016-12-29 Raytheon Company Munition with multiple fragment layers
US10520289B2 (en) * 2014-02-11 2019-12-31 Raytheon Company Munition with multiple fragment layers
US10401135B2 (en) * 2014-02-11 2019-09-03 Raytheon Company Penetrator munition with enhanced fragmentation
US10267607B2 (en) * 2014-02-11 2019-04-23 Raytheon Company Munition with outer enclosure
US10502538B1 (en) * 2015-06-17 2019-12-10 Bae Systems Bofors Ab Pre-fragmentation of warhead
US20190025030A1 (en) * 2016-01-15 2019-01-24 Saab Bofors Dynamics Switzerland Ltd. Warhead
US10753716B2 (en) * 2016-01-15 2020-08-25 Saab Bofors Dynamics Switzerland Ltd. Warhead
US20190033047A1 (en) * 2016-01-15 2019-01-31 Saab Bofors Dynamics Switzerland Ltd. Warhead
JP2019503470A (ja) * 2016-01-15 2019-02-07 サーブ・ボフォース・ダイナミクス・スウィツァランド・リミテッド 弾頭
KR20180101714A (ko) * 2016-01-15 2018-09-13 사브 보포스 다이나믹스 스위츠랜드 엘티디. 탄두
EP3414513A1 (en) * 2016-01-15 2018-12-19 Saab Bofors Dynamics Switzerland Ltd. Warhead
EP3403047B1 (en) * 2016-01-15 2022-06-22 Saab Bofors Dynamics Switzerland Ltd. Warhead
WO2017120686A1 (en) * 2016-01-15 2017-07-20 Saab Bofors Dynamics Switzerland Ltd Warhead
WO2017120684A1 (en) * 2016-01-15 2017-07-20 Saab Bofors Dynamics Switzerland Ltd Warhead
US10612899B2 (en) * 2016-01-15 2020-04-07 Saab Bofors Dynamics Switzerland Ltd. Warhead
US11614311B1 (en) 2016-03-22 2023-03-28 Northrop Grumman Systems Corporation Prefragmented warheads with enhanced performance
US12072171B1 (en) 2016-03-22 2024-08-27 Northrop Grumman Systems Corporation Prefragmented warheads with enhanced performance
US11105596B1 (en) 2016-03-22 2021-08-31 Northrop Grumman Systems Corporation Prefragmented warheads with enhanced performance
US10634472B1 (en) * 2016-03-22 2020-04-28 Northrop Grumman Innovation Systems, Inc. Prefragmented warheads with enhanced performance
US20180252508A1 (en) * 2017-03-06 2018-09-06 Omnitek Partners Llc High Explosive Fragmentation Mortars
US11226181B2 (en) * 2017-03-06 2022-01-18 Omnitek Partners, L.L.C. High explosive fragmentation mortars
US11041704B1 (en) 2017-07-25 2021-06-22 The United States Of America As Represented By The Secretary Of The Army Method of manufacturing composite projectile body embedded with preformed fragments
WO2019112502A1 (en) * 2017-12-05 2019-06-13 Bae Systems Bofors Ab Warhead
US11187508B2 (en) 2017-12-05 2021-11-30 Bae Systems Bofors Ab Warhead
KR20240125692A (ko) * 2017-12-05 2024-08-19 비에이이 시스템즈 보포즈 아베 탄두
JP2021505834A (ja) * 2017-12-05 2021-02-18 ベーアーエー・システムズ・ボフォース・アクチエボラグＢａｅ Ｓｙｓｔｅｍｓ Ｂｏｆｏｒｓ Ａｂ 弾頭
US12135196B2 (en) 2020-02-28 2024-11-05 Bae Systems Bofors Ab Method for producing a component for a warhead, and warhead
SE2000234A1 (en) * 2020-12-14 2022-06-15 Saab Ab A fragmentation warhead a method of manufacturing of a fragmentation warhead
US20240035790A1 (en) * 2020-12-14 2024-02-01 Saab Ab A fragmentation warhead and a method of manufacturing of a fragmentation warhead
SE546480C2 (en) * 2020-12-14 2024-11-12 Saab Ab A fragmentation warhead and a method of manufacturing of a fragmentation warhead
US12320623B2 (en) * 2020-12-14 2025-06-03 Saab Ab Fragmentation warhead and a method of manufacturing of a fragmentation warhead
US12276486B2 (en) 2021-05-19 2025-04-15 Bae Systems Bofors Ab Method for producing a warhead component
WO2024144979A3 (en) * 2022-12-05 2024-09-26 Breault Research Organization, Inc. Enhanced lethality warhead

Also Published As

Publication number Publication date
DE2129196C3 (de) 1975-11-13
BE784623A (fr) 1972-10-02
IT956381B (it) 1973-10-10
DE2129196A1 (de) 1973-01-04
SE393186B (sv) 1977-05-02
NO130205B (enrdf_load_stackoverflow) 1974-07-22
NL7207380A (enrdf_load_stackoverflow) 1972-12-14
GB1364782A (en) 1974-08-29
FR2151826A5 (enrdf_load_stackoverflow) 1973-04-20
DE2129196B2 (enrdf_load_stackoverflow) 1975-04-03
AT316356B (de) 1974-07-10
CH556014A (de) 1974-11-15

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