US3863299A - Clasp for a bracelet - Google Patents

Clasp for a bracelet Download PDF

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Publication number
US3863299A
US3863299A US360931A US36093173A US3863299A US 3863299 A US3863299 A US 3863299A US 360931 A US360931 A US 360931A US 36093173 A US36093173 A US 36093173A US 3863299 A US3863299 A US 3863299A
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United States
Prior art keywords
clasp
portions
locking
leg
legs
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Expired - Lifetime
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US360931A
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Robert Hocq
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Cartier SA
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Cartier SA
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Priority to FR7217596A priority Critical patent/FR2184440B1/fr
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    • AHUMAN NECESSITIES
    • A44HABERDASHERY; JEWELLERY
    • A44CPERSONAL ADORNMENTS, e.g. JEWELLERY; COINS
    • A44C5/00Bracelets; Wrist-watch straps; Fastenings for bracelets or wrist-watch straps
    • A44C5/18Fasteners for straps, chains or the like
    • A44C5/22Fasteners for straps, chains or the like for closed straps
    • A44C5/24Fasteners for straps, chains or the like for closed straps with folding devices
    • 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
    • Y10T24/00Buckles, buttons, clasps, etc.
    • Y10T24/21Strap tighteners
    • Y10T24/2143Strap-attached folding lever
    • Y10T24/2155Jewelry-watch straps

Abstract

A clasp for a bracelet which has two legs pivoted relatively to one another at one of their respective ends and the other respective ends of which are adapted to receive a bracelet member. One of the two legs is telescopic and is formed by portions adapted to slide relatively to one another. Two discrete locking assemblies are provided, one for locking the portions of the telescopic leg in each of its respective telescoped positions and the other for locking the two legs of the clasp together and in each of the telescoped positions.

Description

Umted States Patent [1 1 1111 3,863,299
Hocq Feb. 4, 1975 CLASP FOR A BRACELET 2,908,953 10/1959 Anderson 24/230 F x 7 Inventor: Robert q Boulogne sur seine 3,609,823 l0/l97l Boots -4/49 CF France FOREIGN PATENTS OR APPLICATIONS Assignee: Societe Anonyme u Cartier, 353,567 5/1961 Switzerland 24/71 J Paris, France I Primary Examiner-Donald A. Grlffin Filed! y 16, 1973 Attorney, Agent, or Firm-Brisebois & Kruger [21] Appl. No.: 360,931
[57] ABSTRACT [52] U.S. Cl. 24/71 J A clasp for a braceerwhich has two legs pivmcd [51] IL CL I I X 5/24 tively to one another at one of their respective ends [:58] Field of ap 69 J 70 J and the other respective ends of which are adapted to 24/49 A 49 CF 230 F 6 SL ireceive a bracelet member. One of the two legs is telews scopic and is formed by portions adapted to slide relatively to one another. Two discrete locking assemblies [56] References Cited are provided, one for locking the portions of the telescopic leg in each of its respective telescoped posi- UNITED STATES PATENTS tions and the other for locking the two legs of the l a g 24/71 ST clasp together and in each of the telescoped positions.
a ey 2,491,977 12/1949 Heller 24/71 1 4 Claims, 10 Drawing Figures PATENTED FEB l 75 SHEET 10F 2 PATENTEDFEB' 419. 5 3,863 ,299
SHEET 2 OF 2 1 CLASP FOR A BRACELET The present invention relates to a clasp for a bracket ing a form of compass whose flat, curved legs can be locked to one another so that they can substantially follow the shape of the wrist.
It is known that bracelets, and more particularly watch straps, with an open-out buckle-type clasp have great aesthetic advantages but are difficult to adapt to the size of the wearers wrist.
The problem of the present invention is to eliminate this shortcoming. The invention relates to a clasp of the open-out buckle type which permits the regulation of the length of the buckle formed by the bracelet which it closes.
The present invention therefore has for its object a clasp for a bracelet, notably a watch strap comprising two legs articulated relative to one another at one of their ends and each provided at their other end with means for receiving a bracelet member, notably of leather, having a first means for locking the two legs of the clasp relative to one another, said clasp being characterised in that one of the two legs is telescopic and formed by two portions able to slide relative to one another and that said clasp has a second locking means different from said first means for ensuring the relative positioning of the two portions of the telescopic leg, said first means ensuring the locking of the two legs of the clasp for each of the lengths of the telescopic leg determined by the second locking means.
Advantageously the two legs are flat and curvedso that they can substantially follow the shape of the wrist.
Preferably, for making regulation easier, the telescopic leg is in contact with the wearers wrist.
According to an embodiment of the invention one of the two portions of the telescopic leg is slidingly mounted relative to the other via a dovetail slot, the variation of the length of the telescopic leg being determined by a lug carried by one of the portions of said leg and inserted in an oblong hole in the other. Advantageously the locking means according to the relative marked positions of one of the portions of the telescopic leg relative to the other comprises an elastic foil fixed to one of said portions and spaced openings in the sliding direction and a projection which can be inserted in said holes and fixed to the other portion of the telescopic leg.
According to another embodiment one of the portions of the telescopic leg forms a sleeve for the other. In this case the locking means according to the relative marked positions of one of the portions of the telescopic leg relative to the other comprises an elastic portion of the part introduced into the sleeve for at least one projection and a plurality of openings in said sleeve, whereby said projections can be inserted into each of said openings.
Preferably the end of the portion inserted in the sleeve is shaped like a fork with three flat prongs, whereof the central rigid prong opposes the two outer elastic prongs carrying the lateral projections.
As a variant the means for locking the legs on one another can comprise a spring clip fixed to one of the legs and spaced openings in the other leg and whose spacing corresponds to that of the openings in the locking means of the two portions of the telescopic leg relative to one another. In this case advantageously the spring clip is fixed to the telescopic leg, whereby the spaced openings are provided in the other leg.
According to another embodiment of the invention both legs of the clasp can be telescopic.
The attached drawings give a better understanding of the invention. 7
FIG. I shows in perspective in the open position a clasp according to the invention;
FIG. 2 is a longitudinal section in the closed position of the clasp of FIG. I; I
FIG. 3 isya cross-section along the line III-Ill of FIG. 2;
FIG. .4 shows one of the portions of the telescopic leg of the clasp of FIG. 1;
FIG. 5 shows in perspective in the open position a variant of the clasp of the invention;
FIG. 6 is a longitudinal section in the closed position of the clasp of FIG. 5;
FIG. 7 is a cross-section along the line VlI-VII of FIG. 5;
FIGS. 8 and 9 are respectively cross-sections along the lines VIII-VIII and IXIX of FIG. 6;
FIG. 10 shows one of the portions of the telescopic leg of the clasp of FIG. 5.
The clasp shown in FIG. 1 has two curved, flat legs 1 and 2 each pivoted at 3 at one end so that they are either spaced from one another (FIG. I) or superposed (FIG. 2).
To the free ends 4 and 5 of legs 1 and 2 are fixed the ends of a bracelet 6, e.g., a watch strap. A platelet 7 having raised edges and fixed to leg 1 masks from the outside the connection of the ends of the bracelet.
Leg 1 is a single member and has at its end 4 a central spring clasp 8.
Leg 2 which is in contact with the wearer's wrist comprises two portions 9 and 10 which can slide relatively to one another via a dovetail assembly (see FIG. 3), portion 10 having a slot in which is arranged portion 9. Portion 9 is pivoted at one of its ends at 3 to leg I. The surface of portion 9 has a projection 11 and a lug l2. Lug 12 is normally introduced in an oblong slot 13 of portion 10 which permits the limitation in both directions of the amount of slide of one portion relative to the other.
Portion 10 has an adjustable section 14 provided with spaced openings 15, each of which is able to co-operate with projection 11 of portion 9 to form a locking device for portions 9 and 10 according to the marked relative positions. Finally portion 10 has spaced openings 16 whose spacing corresponds to that of the openings 15 and which are able to co-operate with the spring clip 8 for locking portions 9 and 10 on one another. Thus, whatever the length of leg 2 determined by the choice ofa relative locked position of portion 9 relative to portion 10, said two legs 1 and 2 can be locked on one another.
Thus the clasp of FIGS. 1 to 4 permits, through the regulation of the length of branch 2, the adjustment of the length of bracelet 6.
The embodiment of the clasp according to the invention shown in FIG. 5 has two flat, curved legs 17 and I8, pivoted at 19 at one end so that they can be spaced relative to one another (FIG. 5) or superposed (FIG. 6).
To the free ends 20, 21 of legs 17, 18 are fixed the ends of a bracelet 22, e.g., a watch strap. As in the previous embodiment a platelet 23 with raised edges and fixed to leg 17 permits the masking from the outside of the connection of the two ends of the bracelet 22. Leg 17 is a single member and has a plurality of spaced openings 24.
Leg 18 comprises two portions 25, 26 able to slide relative to one another, whereby portion 26 is a flat sleeve of rectangular cross-section wherein is introduced portion (see FIGS. 7, 8 and 9). Portion 23 is pivoted at one of its ends at 19 to leg 17. Portion 25 has an oblong slot 27 while its end opposite to leg 17 is shaped like a fork with three prongs 28 whereof the central rigid prong opposes the two other elastic prongs, which carry the lateral projections 29. Oblong slot 27 is normally transversed by a lug 30 fixed to portion 26 which permits the limitation, in both directions of the amount of slide of one of the portions relative to the other.
Portion 26 has lateral spaced openings 31 each able to co-operate with a projection 29 of portion 25 to form a locking device for portions 25, 26 according to the marked relative positions. Finally position 26 has a spring clip 32 able to co-operate with each of the openings 24 to lock legs 17, 18 to one another. The spacing of openings 24 correspond to that of the openings 31. In this embodiment the regulation of the length of leg 18 permits the adjustment of the length of bracelet 22.
I claim:
1. Clasp for a bracelet comprising two legs, each having one end pivotally connected to one end of the other locking the two portions of the telescopic leg in any of several relative positions corresponding to different lengths of the telescopic leg and defined by spaced openings in one of said relatively slidable portions, said first locking means comprising a spring clip fixed to one of the legs and spaced openings in the other leg spaced by the same distance as the openings in said one slidable portion, said first locking means being adapted to lock the legs of the clasp together with the two portions of said telescopic leg in any of said several positions.
2. Clasp as claimed in claim 1 wherein said spring clip is fixed to the telescopic leg, and the spaced openings are formed in the other leg.
3. Clasp as claimed in claim 1 wherein one of said portions of the telescopic leg is mounted to slide relative to the other by means of a dovetail slot.
4. Clasp as claimed in claim 1 wherein the means for locking one of the portions of the telescopic leg relative to the other comprises an elastic strip fixed to one of said portions and provided with longitudinally spaced holes and a projection on the other portion of the telescopic le'g positioned to be inserted in said holes.
UNITED STATES PATENT OFFICE QE'HFICATE 0F CURRECTION Patent No. 3,863,299 Dated Februarv l. 1975 Q Inventor(s) ROBERT HOCQ It is certified that error appears in the above-identified patent and that said Letters Patent are hereby corrected as shown below:
[30] Foreign Application Priority Data May 17, 1972 France 72 17596 Signed and Entaled this second Day of September 1975 [SEAL] e Arrest:
RUTH C. MASON C. MARSHALL DANN Arresting Officer (mnmissl'mzer of Patents and Trademarks O FORM PO-105O (10-69) USCOMM-DC scam-ps9 fi' U.S. GOVERNMENT PRINTING OFFICE: I969 0-356-334,

Claims (4)

1. Clasp for a bracelet comprising two legs, each having one end pivotally connected to one end of the other leg and each provided at its other end with means for receiving a bracelet member, first locking means for locking the two legs of the clasp to each other, one of the two legs being telescopic and comprising two portions adapted to slide relative to each other, and second locking means distinct from said first locking means for locking the two portions of the telescopic leg in any of several relative positions corresponding to different lengths of the telescopic leg and defined by spaced openings in one of said relatively slidable portions, said first locking means comprising a spring clip fixed to one of the legs and spaced openings in the other leg spaced by the same distance as the openings in said one slidable portion, said first locking means being adapted to lock the legs of the clasp together with the two portions of said telescopic leg in any of said several positions.
2. Clasp as claimed in claim 1 wherein said spring clip is fixed to the telescopic leg, and the spaced openings are formed in the other leg.
3. Clasp as claimed in claim 1 wherein one of said portions of the telescopic leg is mounted to slide relative to the other by means of a dovetail slot.
4. Clasp as claimed in claim 1 wherein the means for locking one of the portions of the telescopic leg relative to the other comprises an elastic strip fixed to one of said portions and provided with longitudinally spaced holes and a projection on the other portion of the telescopic leg positioned to be inserted in said holes.
US360931A 1972-05-17 1973-05-16 Clasp for a bracelet Expired - Lifetime US3863299A (en)

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Application Number Priority Date Filing Date Title
FR7217596A FR2184440B1 (en) 1972-05-17 1972-05-17

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JP (1) JPS535940B2 (en)
AR (1) AR196932A1 (en)
AT (1) AT329303B (en)
AU (1) AU475106B2 (en)
BE (1) BE799544A (en)
BR (1) BR7303621D0 (en)
CA (1) CA993675A (en)
CH (1) CH571327A5 (en)
DE (1) DE2324682A1 (en)
FR (1) FR2184440B1 (en)
GB (1) GB1394776A (en)
HK (1) HK56377A (en)
IT (1) IT987494B (en)
LU (1) LU67599A1 (en)
NL (1) NL7306637A (en)
SE (1) SE399173B (en)

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4542561A (en) * 1983-01-28 1985-09-24 Jean Lassale S.A. Wristlet clasp with unfolding buckle
US4545095A (en) * 1983-05-13 1985-10-08 Omega Sa Extensible clasp for use with a flexible wristlet
US4545094A (en) * 1983-05-13 1985-10-08 Omega Sa Extensible clasp for use with flexible wristlet
DE3520122A1 (en) * 1984-06-25 1986-01-02 Tomita Import Export Gmbh Wrist strap fastener
US4670947A (en) * 1985-02-08 1987-06-09 Interdica S.A. Hidden clasp for a bracelet, particularly for a wrist-watch
US4928359A (en) * 1988-07-15 1990-05-29 Omega Sa Extendable bracelet clasp with fine adjustment
US5187838A (en) * 1991-12-23 1993-02-23 G.T.F. S.R.L. Jointed pocket-book type closing device for watch bands, bracelets, jewels and the like
US5408729A (en) * 1994-03-08 1995-04-25 C.I.S.-Lrc Joint Venture Apparatus for clamping an elongated flexible member
US5689859A (en) * 1995-06-15 1997-11-25 Smh Management Services Ag Bracelet clasp with unfolding buckle
US5749128A (en) * 1996-03-08 1998-05-12 Smh Management Services Ag Extensible clasp for a bracelet
US5781968A (en) * 1996-07-25 1998-07-21 Smh Management Services Ag Unfolding buckle clasp
US5857243A (en) * 1996-11-06 1999-01-12 Smh Management Services Ag Clasp with unfolding buckle
US6308382B1 (en) 1999-01-04 2001-10-30 Garwin Enterprises Limited Locking assembly for a metal watchband
FR2828637A1 (en) * 2001-08-17 2003-02-21 Naja Deployment loop type clasp
US6799436B1 (en) * 2002-05-24 2004-10-05 Leon Minassian Adjustable and linkable jewelry device
US20070125123A1 (en) * 2005-11-23 2007-06-07 Werthanor S.A. Device for setting the length of a bracelet, bracelet provided with such a device and watch fitted with such a bracelet
EP1815765A1 (en) * 2006-02-07 2007-08-08 Montres Journe S.A. Regulating mechanism for fine adjustment of the working length of a strap, especially for a wristwatch strap
US20120312052A1 (en) * 2011-06-10 2012-12-13 Suunto Oy Asymmetric butterfly clasp
US20140150223A1 (en) * 2012-12-04 2014-06-05 Omega Sa Adjustable bracelet clasp
US8789485B2 (en) 2012-02-24 2014-07-29 Arthur W. Juenger Device for securing a portion of a line
US20150181988A1 (en) * 2013-12-26 2015-07-02 The Swatch Group Management Services Ag Bracelet clasp comprising a device for adjusting the useful length of the bracelet
US20150366294A1 (en) * 2014-06-23 2015-12-24 Judith Ann Riccardi Decorative Ornament

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5594146A (en) * 1994-02-24 1997-01-14 Nippon Carbide Kogyo Kabushiki Kaisha Process for producing 5-aminotetrazole

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US478120A (en) * 1892-07-05 Albert g
US1695487A (en) * 1927-04-18 1928-12-18 Hadley Company Wrist-watch strap
US2491977A (en) * 1947-07-21 1949-12-20 Heller Miriam Fastening device for bracelets and wristbands
US2908953A (en) * 1958-02-06 1959-10-20 Olof V Anderson Clasp
US3609823A (en) * 1969-12-12 1971-10-05 Electronic Engineering Co Adjustable tie bar

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1966063A (en) * 1931-02-18 1934-07-10 Hadley Company Inc Bracelet connecter
US2110772A (en) * 1931-10-19 1938-03-08 Providence Stock Company Extension device
GB717307A (en) * 1952-10-01 1954-10-27 B E Leng Birmingham Ltd Improvements relating to bracelet fasteners

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US478120A (en) * 1892-07-05 Albert g
US1695487A (en) * 1927-04-18 1928-12-18 Hadley Company Wrist-watch strap
US2491977A (en) * 1947-07-21 1949-12-20 Heller Miriam Fastening device for bracelets and wristbands
US2908953A (en) * 1958-02-06 1959-10-20 Olof V Anderson Clasp
US3609823A (en) * 1969-12-12 1971-10-05 Electronic Engineering Co Adjustable tie bar

Cited By (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4542561A (en) * 1983-01-28 1985-09-24 Jean Lassale S.A. Wristlet clasp with unfolding buckle
US4545095A (en) * 1983-05-13 1985-10-08 Omega Sa Extensible clasp for use with a flexible wristlet
US4545094A (en) * 1983-05-13 1985-10-08 Omega Sa Extensible clasp for use with flexible wristlet
DE3520122A1 (en) * 1984-06-25 1986-01-02 Tomita Import Export Gmbh Wrist strap fastener
US4670947A (en) * 1985-02-08 1987-06-09 Interdica S.A. Hidden clasp for a bracelet, particularly for a wrist-watch
US4928359A (en) * 1988-07-15 1990-05-29 Omega Sa Extendable bracelet clasp with fine adjustment
US5187838A (en) * 1991-12-23 1993-02-23 G.T.F. S.R.L. Jointed pocket-book type closing device for watch bands, bracelets, jewels and the like
US5408729A (en) * 1994-03-08 1995-04-25 C.I.S.-Lrc Joint Venture Apparatus for clamping an elongated flexible member
US5689859A (en) * 1995-06-15 1997-11-25 Smh Management Services Ag Bracelet clasp with unfolding buckle
US5749128A (en) * 1996-03-08 1998-05-12 Smh Management Services Ag Extensible clasp for a bracelet
US5781968A (en) * 1996-07-25 1998-07-21 Smh Management Services Ag Unfolding buckle clasp
US5857243A (en) * 1996-11-06 1999-01-12 Smh Management Services Ag Clasp with unfolding buckle
US6308382B1 (en) 1999-01-04 2001-10-30 Garwin Enterprises Limited Locking assembly for a metal watchband
FR2828637A1 (en) * 2001-08-17 2003-02-21 Naja Deployment loop type clasp
WO2003015562A1 (en) * 2001-08-17 2003-02-27 Naja S.A. Clasp with unfolding buckle
US6799436B1 (en) * 2002-05-24 2004-10-05 Leon Minassian Adjustable and linkable jewelry device
US20070125123A1 (en) * 2005-11-23 2007-06-07 Werthanor S.A. Device for setting the length of a bracelet, bracelet provided with such a device and watch fitted with such a bracelet
US7571519B2 (en) * 2005-11-23 2009-08-11 Werthanor S.A. Device for setting the length of a bracelet, bracelet provided with such a device and watch fitted with such a bracelet
EP1815765A1 (en) * 2006-02-07 2007-08-08 Montres Journe S.A. Regulating mechanism for fine adjustment of the working length of a strap, especially for a wristwatch strap
WO2007090306A1 (en) * 2006-02-07 2007-08-16 Montres Journe S.A. Device for the fine adjustment of the useful length of a wrist strap, such as the wrist strap of a watch
US20090089980A1 (en) * 2006-02-07 2009-04-09 Montres Journe S.A Device for the fine adjustment of the useful length of a wrist strap, such as the wrist strap of a watch
US20120312052A1 (en) * 2011-06-10 2012-12-13 Suunto Oy Asymmetric butterfly clasp
US8789246B2 (en) * 2011-06-10 2014-07-29 Suunto Oy Asymmetric butterfly clasp
US8789485B2 (en) 2012-02-24 2014-07-29 Arthur W. Juenger Device for securing a portion of a line
US20140150223A1 (en) * 2012-12-04 2014-06-05 Omega Sa Adjustable bracelet clasp
US9314073B2 (en) * 2012-12-04 2016-04-19 Omega Sa Adjustable bracelet clasp
US20150181988A1 (en) * 2013-12-26 2015-07-02 The Swatch Group Management Services Ag Bracelet clasp comprising a device for adjusting the useful length of the bracelet
US9993051B2 (en) * 2013-12-26 2018-06-12 The Swatch Group Management Services Ag Bracelet clasp comprising a device for adjusting the useful length of the bracelet
US20150366294A1 (en) * 2014-06-23 2015-12-24 Judith Ann Riccardi Decorative Ornament
US9439476B2 (en) * 2014-06-23 2016-09-13 Judith Ann Riccardi Decorative ornament

Also Published As

Publication number Publication date
CA993675A1 (en)
LU67599A1 (en) 1975-03-06
BR7303621D0 (en) 1974-07-25
BE799544A (en) 1973-11-16
SE399173B (en) 1978-02-06
CH571327A5 (en) 1976-01-15
CA993675A (en) 1976-07-27
AU475106B2 (en) 1976-08-12
FR2184440A1 (en) 1973-12-28
JPS505175A (en) 1975-01-20
BE799544A1 (en)
AR196932A1 (en) 1974-02-28
GB1394776A (en) 1975-05-21
DE2324682A1 (en) 1973-12-06
ATA429473A (en) 1975-07-15
JPS535940B2 (en) 1978-03-03
FR2184440B1 (en) 1976-01-16
AT329303B (en) 1976-05-10
AU5573073A (en) 1974-11-21
HK56377A (en) 1977-11-18
IT987494B (en) 1975-02-20
NL7306637A (en) 1973-11-20

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