US3866866A - Collapsible fitting - Google Patents

Collapsible fitting Download PDF

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Publication number
US3866866A
US3866866A US424760A US42476073A US3866866A US 3866866 A US3866866 A US 3866866A US 424760 A US424760 A US 424760A US 42476073 A US42476073 A US 42476073A US 3866866 A US3866866 A US 3866866A
Authority
US
United States
Prior art keywords
bracket member
links
connecting flange
bracket
fitting according
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 - Lifetime
Application number
US424760A
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English (en)
Inventor
Karl Kneile
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.)
Robert Krause GmbH and Co KG
Original Assignee
Krause Kg Robert
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 Krause Kg Robert filed Critical Krause Kg Robert
Application granted granted Critical
Publication of US3866866A publication Critical patent/US3866866A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/14—Mounting supporting structure in casing or on frame or rack
    • H05K7/16—Mounting supporting structure in casing or on frame or rack on hinges or pivots
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B21/00—Tables or desks for office equipment, e.g. typewriters, keyboards
    • A47B21/04—Tables or desks for office equipment, e.g. typewriters, keyboards characterised by means for holding or fastening typewriters or computer equipment
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B46/00—Cabinets, racks or shelf units, having one or more surfaces adapted to be brought into position for use by extending or pivoting
    • A47B46/005—Cabinets, racks or shelf units, having one or more surfaces adapted to be brought into position for use by extending or pivoting by displacement in a vertical plane; by rotating about a horizontal axis
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B88/00—Drawers for tables, cabinets or like furniture; Guides for drawers
    • A47B88/40—Sliding drawers; Slides or guides therefor
    • A47B88/483—Sliding drawers; Slides or guides therefor with single extensible guides or parts
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B88/00—Drawers for tables, cabinets or like furniture; Guides for drawers
    • A47B88/40—Sliding drawers; Slides or guides therefor
    • A47B88/497—Sliding drawers; Slides or guides therefor with other guiding mechanisms, e.g. scissor mechanisms
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B21/00—Tables or desks for office equipment, e.g. typewriters, keyboards
    • A47B21/03—Tables or desks for office equipment, e.g. typewriters, keyboards with substantially horizontally extensible or adjustable parts other than drawers, e.g. leaves
    • A47B21/0314—Platforms for supporting office equipment
    • A47B2021/0321—Keyboard supports
    • A47B2021/0328—Keyboard supports of the pantograph type
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S248/00—Supports
    • Y10S248/917—Video display screen support
    • Y10S248/918—Ancillary device support associated with a video display screen

Definitions

  • ABSTRACT An articulated framework especially for retractably supporting a typewriter in a desk, said framework including bracket members for being fixed to a desk within a recess provided therein for receiving the typewriter and each bracket member having a pair of parallel links pivoted thereto with a typewriter support platform pivotally connected to the other ends of the links for movement in parallelism with itself between working and retracted positions.
  • Each bracket member is provided with a connecting flange laterally offset therefrom which is fixed to the desk and the pairs of links are interconnected to move in unison.
  • Counterbalancing spring means are provided to counterbalance the Weight of the typewriter and arresting means are provided for restraining the links while supporting the platform in extended position.
  • the present invention relates to a collapsible fitting for pivoting supports out and into furniture, or the like, for instance cupboards, which fitting is provided with two lateral parallelogram linkage systems which are arranged on holding means, two guiding means of which are positively interconnected by a bar within the region of their linkage areas. Those ends of the bar which face away from the holding means for the fitting have linked thereto support holders and also have associated therewith an arresting device for the pivoted-out position while the fitting holders form connecting flanges for connection to the furniture, or the like, and form bearing brackets for the guiding means of the parallelogram rod systems.
  • the above pivoting supports may, for instance, have typewriters on a desk, parts of kitchen furniture, or the like.
  • FIG. 1 illustrates an isometric view of a collapsible fitting according to the invention.
  • FIG. 2 is a partial section taken along the line IIII of FIG. 1.
  • FIG. 3 represents a top view of the arrangement according to FIG. 2.
  • the above outlined object has been realized according to the present invention by offsetting toward the outside the connecting flange of at least one fitting holder relative to the pertaining bearing bracket.
  • the bearing bracket and the connecting flange are arranged in the form of plane plates while they are located parallel to each other in two planes.
  • the bearing bracket and the connecting flange have in the longitudinal direction of the pivoted out guiding means approximately equal length.
  • the bearing bracket and the connecting flange merge with each other by a preferably stripshaped connecting section which is located at a right angle to said bearing bracket and connecting flange, in such a way that a relative high strength will be assured.
  • the connecting bracket and the connecting flange may, in a simple manner, form one single piece and preferably are made of sheet metal.
  • the front end of the fitting holder is provided with a shield which extends up to the connecting plane of the connecting flange.
  • This shield which is preferably formed by the front angled-off end of the bearing bracket so that it will be avoided in a simple manner that the space between the outside of the bearing bracket and the oppositely located inner surface of the furniture piece, or the like, is open or can be seen from the outside. Furthermore, in this way, sharp edges at the front end of the bearing bracket will be avoided.
  • a counterbearing which is located on the inside of the bearing bracket and is intended for a weight balancing spring resting against the parallelogram linkage system, said weight balancing spring being designed as pressure spring.
  • This counterbearing is, for purposes of a simple construction, formed preferably by the rear angled-off end of the bearing bracket and assures a safe support of the weight balancing spring.
  • the arresting device has two arresting levers which are located on those inner sides of the bearing bracket which face each other. These arresting levers are interconnected through an uninterrupted bearing bar which is located in the pivot axes of said levers.
  • the bearing bar is located above the pivoted-out guiding means, preferably in the uppermost front range ofthe bearing brackets, while the arresting lever is located on those inner sides of the guiding means which face each other, so that a very simple assembly will be assured.
  • an abutment plate for said guiding means which, in a simple manner, is formed by a part which is bent out of the bearing bracket.
  • the abutment plate may additionally serve for locat ing the arresting lever in its rest position when it has an abutment surface for the pertaining arresting lever located in rest position and is arranged preferably below the pivot axis of the arresting lever and behind the respective arresting lever.
  • the abutment plate has a preferably hook-shaped counterbearing for a tension spring connected to the pertaining arresting lever, the abutment plate maysimultaneously also be employed for linkage connection with the tension spring.
  • a synchronous movement bar which in pivoted-out position interconnects the upper guiding means, has its ends directly connected to said guiding means, preferably by welding.
  • a favorable arrangement is obtained when said synchronous movement bar is located adjacent to the pivoted axis, preferably on that side of said synchronous movement bar which faces away from the support holders, at the pertaining ends of the guiding means.
  • FIG. 1 shows a collapsible fitting according to the invention which comprises an image symmetrically to the longitudinal plane of said fitting, fitting holders 1 which respectively form a bearing bracket and a connecting flange 3.
  • the bearing bracket 2 and the connecting flange 3 are connected to each other by means of a strip 4 which is located at a right angle thereto.
  • the plate-shaped bearing bracket 2 is offset relative to the pertaining connecting flange which is plane and parallel to said bearing bracket 2 and, more specifically, is offset in the direction to the oppositely located fitting l by the width of the connecting strip 4.
  • the bearing bracket 2 is wider than the connecting flange 3 by approximately twice the width of the connecting flange 3.
  • the front end 5 of the respective bearing bracket is angled-off outwardly at a right angle in such a way that the end edge is located approximately in the plane of the connecting surface of the connecting flange 3 and forms a sight aperture (Sichtblende).
  • the connecting flange 3 thus slightly protrudes beyond the front end of the bearing bracket 2 while this end of the connecting flange 3 has a receiving bore 6 for a connecting screw, or the like.
  • a guiding means 7 Slightly adjacent to the rear end of the bearing bracket 2 on the inner side thereof and in the immediate vicinity to the lower edge there is linked a guiding means 7 by means of a pivot bearing bolt 8.
  • This guiding means extends parallel to the bearing bracket 2 and is located on the inner side thereof while having the form of a flat bar.
  • a second guiding means 9 is slightly above the bolt 8 and closely adjacent to the front end of the respective bearing bracket 2 pivotably linked by means of a pivot bearing bolt 10.
  • the guiding means 9 is parallel to said guiding means 7 and is located on the top side thereof.
  • the pivot axes of the guiding means 7, 9 are located at a right angle to the connecting flanges 3.
  • a carrier angle 11 engages the inner sides of the guiding means 7, 9, which inner sides face each other and are linked about axles parallel to the bolts 8, 9 in such a way that a parallel rod system is obtained. From the pivoted-out position illustrated in FIG. 1, the carrier angles 11 to which, for instance, an apparatus plate may be connected can be pivoted downwardly and backwardly while the apparatus plate remains continuously in its horizontal position.
  • a synchronous movement bar 12 which is parallel to the pivot axis of said guiding means 9 and extends over the width of the collapsible fitting.
  • the bar 12 has a rectangular cross section.
  • the bar 12 has its end surface 13 directly connected to those inner sides of the guiding means 9 which face each other. This connection may, for instance, be effected by welding.
  • the bar 12 is located in the immediate vicinity of the pertaining pivot bearing bolt 12 and, more specifically, on that side of bolt 10 which faces away from the carrying angle 11.
  • each of these arms has a counterbearing bolt 15 for a weight balancing spring 16 which is arranged in a fork.
  • the counterbearing bolts 15 are parallel to the bolts 8, 10.
  • the rear ends of the bearing brackets 2 are angled off toward each other at a right angle in a such a way that they form counterbearings 17 with an eye-shaped bushing 18.
  • the weight balancing springs 16 which are illustrated in FIG.
  • a profile guiding rod 19 which is equipped at its front end with a supporting disc 20 and ahead thereof with a bearing member 21 and has displaceably guided adjacent to its rear end a bearing disc 22.
  • the disc 22 is displaceably guided in the longitudinal direction of said guiding bar 19.
  • a helical pressure spring 23 which extends around the bar 19.
  • the rear end of the bar 19 is passed through a bore in the bushing 18 so that the disc or bearing ring 22 is pivotally located in the bushing 18.
  • the member 21 is brought into engagement with the bolt 15 so that the springs 23 will resiliently urge the collapsible fitting toward the pivoted-out position.
  • each bearing bracket 2 Above the upper guiding means9 which is in its pivoted-out position, there is in each bearing bracket 2 provided a passage bore 27 for engagement by the ends 29 of a bearing bar 28 which may be of a cylindrical design and which extends parallel to the pivot axes of the guiding means 9, 7.
  • a bearing bar 28 which may be of a cylindrical design and which extends parallel to the pivot axes of the guiding means 9, 7.
  • the bearing bar 28 designed as a continuous one piece, one arresting lever 30 each which extends downwardly. This connection may be effected, for instance, by welding.
  • Each arresting lever 30 is, at its rearwardly pointing edge within the region of its lower end provided with a recess 31 for the engagement by an arresting bolt 32.
  • Bolt 32 is provided on the inner side of the pertaining guiding means 7 which occupies a lower position when it is in its pivoted-out position. By means of this arresting lever 30 the parallelogram bar system is safely held in its pivotedout position.
  • a pull rod 33 which is approximately parallel to the guiding means 9.
  • the pull rod 33 is at that end thereof which is located behind the lever 30 provided with a follower bolt 34 in the path of movement of which the lever 30 is located.
  • the pull rod 33 extends up to the outside of the pertaining carrier angle 11 and there is pivotally connected to a pivotally mounted handle 35.
  • each bearing plate 36 has a rearwardly extending hook-shaped extension 38 having suspended therein a helical tension spring 39, the front end of which is connected to the pertaining lever 30 in such a way that the arresting levers 30 are by the two tension springs 39 urged toward the arresting position.
  • the plates 36 may also be so located that the upper guiding means 9, when in pivoted-out position, abut the bottom sides of said plates 36 and thus are secured against a further upward movement.
  • each said bracket member and the pertaining connecting flange are in the form of flat plates disposed in substantial parallelism.
  • each said bracket member and the pertaining connecting flange are in the form of flat plates disposed in substantial parallelism, each said bracket member and the pertaining connecting flange being substantially coextensive in the longitudinal direction.
  • each said bracket member and the pertaining connecting flange are in the form of flat plates disposed in substantial parallelism, each said bracket member and the pertaining connecting flange being substantially coextensive in the longitudinal direction, said one connecting flange and the respective bracket member being integral with each other and a further flange extending therebetween in a plane substantially perpendicular thereto and forming the connection between the said connecting flange and the bracket member.
  • a fitting according to claim 1 which includes a shield member mounted on the said one end of at least the bracket member pertaining to said one connecting flange and extending in the lateral direction.
  • a fitting according to claim 1 which includes a bearing member at the other end of at least one bracket member, and a counterbalancing spring bearing at one.
  • each said bracket member and each said connecting flange are in the form of flat plates and each connecting flange is offset from the pertaining bracket member in a direction away from the bracket member, each bracket member and the pertaining connecting flange being substantially parallel and coextensive in the longitudinal direction, a lateral web extending between each bracket member and the respective connecting flange and connected to the bottom of the bracket member and to the top of the connecting flange, and stiffening ribs formed in each said web and the pertaining bracket member and connecting flange at the junctures thereof for stiffening purposes.
  • each bracket member has a tab on the said other end thereof bent over toward the other bracket member to form a support for the end of a counterbalancing spring cooperating with said pairs of links tocounterbalance a load on said support platfomneach bracket member having a shield portion bent over in a direction away from the other bracket member at the said one end of the bracket member, and ribs formed at the juncture of each tab with the respective bracket member for stiffening purposes.
  • said arresting means comprises a shaft extending transversely between and supported on said bracket members and dis- .posed near the pivotal connection of a respective link of each pair of links with the pertaining bracket member, and hooks carried by said bar and engageable with the other link of each pair of links when the links are .in position to hold the supporting platform in working position.
  • a fitting according to claim 9 in which said hooks are closely adjacent said bracket members on the sides thereof which face each other.
  • a fitting according to claim 10 which includes abutment plates on the sides of said bracket members which face each other and adjacent the said one ends of said bracket members, each abutment plate abutting at least one link of the adjacent pair of links when the support platform is in extended working position.
  • a fitting according to claim 14 in which the ends of said bar are connected to the said one link of each pair of links in the region that .the link is pivotally connected to the respective bracket member.

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Computer Hardware Design (AREA)
  • General Engineering & Computer Science (AREA)
  • Hinges (AREA)
  • Pivots And Pivotal Connections (AREA)
  • Clamps And Clips (AREA)
US424760A 1972-12-16 1973-12-14 Collapsible fitting Expired - Lifetime US3866866A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2261733A DE2261733C3 (de) 1972-12-16 1972-12-16 Möbelbeschlag

Publications (1)

Publication Number Publication Date
US3866866A true US3866866A (en) 1975-02-18

Family

ID=5864627

Family Applications (1)

Application Number Title Priority Date Filing Date
US424760A Expired - Lifetime US3866866A (en) 1972-12-16 1973-12-14 Collapsible fitting

Country Status (13)

Country Link
US (1) US3866866A (da)
AT (1) AT323934B (da)
BE (1) BE808654A (da)
CA (1) CA997818A (da)
DD (1) DD109183A5 (da)
DE (1) DE2261733C3 (da)
DK (1) DK140042C (da)
FR (1) FR2210901A5 (da)
GB (1) GB1451382A (da)
IL (1) IL43827A (da)
IT (1) IT1002228B (da)
SE (1) SE406261B (da)
YU (1) YU36423B (da)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4019601A (en) * 1974-05-06 1977-04-26 Italo Di Giovanni Automatic container-bearer bar for motor vehicles
US4644875A (en) * 1985-03-22 1987-02-24 Weber-Knapp Company Adjustable keyboard supporting mechanism
WO1988001481A1 (en) * 1986-09-04 1988-03-10 Cotterill Michael J Keyboard support apparatus
AU592229B2 (en) * 1986-09-04 1990-01-04 Michael John Cotterill Keyboard support apparatus
US5302015A (en) * 1992-03-12 1994-04-12 Microcomputer Accessories, Inc. Adjustable keyboard drawer
US5483898A (en) * 1994-02-24 1996-01-16 Krueger International Tilting and sliding surface assembly for a table
US5490466A (en) * 1994-03-15 1996-02-13 Howe Furniture Corporation Adjustable keyboard support
US5653413A (en) * 1995-04-03 1997-08-05 Fink; Bernard Pivotable, stowable, keyboard shelf for apron banded table
US5791263A (en) * 1993-07-23 1998-08-11 Weber Knapp Company Adjustable work surface
US7841569B2 (en) 1997-03-12 2010-11-30 Humanscale Corporation Keyboard support mechanism
US20140125212A1 (en) * 2012-11-05 2014-05-08 Lg Electronics Inc. Refrigerator
CN104172758A (zh) * 2013-05-23 2014-12-03 川湖科技股份有限公司 固定装置、滑轨总成及其固定装置

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2700464C2 (de) * 1977-01-07 1986-08-14 Robert Krause Kg Zweigniederlassung Weilheim-Teck, 7315 Weilheim Versenkbeschlag
DE3119761A1 (de) * 1981-05-18 1982-12-23 Miele & Cie GmbH & Co, 4830 Gütersloh Schwenkbeschlag fuer kuechengeraete, insbesondere brotschneidemaschinen und dgl.
DE102010015004B9 (de) 2010-04-14 2020-07-23 Incasa Schlafraumsysteme Gmbh Schrankähnliches Möbel

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US729110A (en) * 1903-02-17 1903-05-26 Charles P Young Rural-delivery letter-box.
US1137074A (en) * 1914-05-14 1915-04-27 Wilmarth Show Case Company Tilting drawer.
US2258372A (en) * 1940-04-19 1941-10-07 John H White Typewriter desk
US2533050A (en) * 1949-08-24 1950-12-05 Runyen David Trailer step

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT555072A (da) * 1956-03-16 1900-01-01
DE1250612B (da) * 1966-03-23 1967-09-21

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US729110A (en) * 1903-02-17 1903-05-26 Charles P Young Rural-delivery letter-box.
US1137074A (en) * 1914-05-14 1915-04-27 Wilmarth Show Case Company Tilting drawer.
US2258372A (en) * 1940-04-19 1941-10-07 John H White Typewriter desk
US2533050A (en) * 1949-08-24 1950-12-05 Runyen David Trailer step

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4019601A (en) * 1974-05-06 1977-04-26 Italo Di Giovanni Automatic container-bearer bar for motor vehicles
US4644875A (en) * 1985-03-22 1987-02-24 Weber-Knapp Company Adjustable keyboard supporting mechanism
WO1988001481A1 (en) * 1986-09-04 1988-03-10 Cotterill Michael J Keyboard support apparatus
AU592229B2 (en) * 1986-09-04 1990-01-04 Michael John Cotterill Keyboard support apparatus
US5031867A (en) * 1986-09-04 1991-07-16 Cotterill Michael J Keyboard support apparatus
US5302015A (en) * 1992-03-12 1994-04-12 Microcomputer Accessories, Inc. Adjustable keyboard drawer
US5791263A (en) * 1993-07-23 1998-08-11 Weber Knapp Company Adjustable work surface
US5483898A (en) * 1994-02-24 1996-01-16 Krueger International Tilting and sliding surface assembly for a table
US5490466A (en) * 1994-03-15 1996-02-13 Howe Furniture Corporation Adjustable keyboard support
US5653413A (en) * 1995-04-03 1997-08-05 Fink; Bernard Pivotable, stowable, keyboard shelf for apron banded table
US7841569B2 (en) 1997-03-12 2010-11-30 Humanscale Corporation Keyboard support mechanism
US7841570B2 (en) 1997-03-12 2010-11-30 Humanscale Corporation Keyboard support mechanism
US20140125212A1 (en) * 2012-11-05 2014-05-08 Lg Electronics Inc. Refrigerator
US9170043B2 (en) * 2012-11-05 2015-10-27 Lg Electronics Inc. Refrigerator
US9464841B2 (en) 2012-11-05 2016-10-11 Lg Electronics Inc. Refrigerator
CN104172758A (zh) * 2013-05-23 2014-12-03 川湖科技股份有限公司 固定装置、滑轨总成及其固定装置
CN104172758B (zh) * 2013-05-23 2016-08-17 川湖科技股份有限公司 固定装置、滑轨总成及其固定装置

Also Published As

Publication number Publication date
DE2261733C3 (de) 1982-01-14
IL43827A0 (en) 1974-03-14
DK140042B (da) 1979-06-11
FR2210901A5 (da) 1974-07-12
YU325173A (en) 1982-02-25
SE406261B (sv) 1979-02-05
DE2261733A1 (de) 1974-06-20
AT323934B (de) 1975-08-11
DD109183A5 (da) 1974-10-20
IT1002228B (it) 1976-05-20
GB1451382A (en) 1976-09-29
DK140042C (da) 1979-12-17
CA997818A (en) 1976-09-28
BE808654A (fr) 1974-03-29
DE2261733B2 (de) 1978-07-20
YU36423B (en) 1984-02-29
IL43827A (en) 1976-05-31

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