EP0010693B1 - Clamp for holding flat workpieces, especially metal sheets - Google Patents

Clamp for holding flat workpieces, especially metal sheets Download PDF

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Publication number
EP0010693B1
EP0010693B1 EP79104023A EP79104023A EP0010693B1 EP 0010693 B1 EP0010693 B1 EP 0010693B1 EP 79104023 A EP79104023 A EP 79104023A EP 79104023 A EP79104023 A EP 79104023A EP 0010693 B1 EP0010693 B1 EP 0010693B1
Authority
EP
European Patent Office
Prior art keywords
clamping
rocker arm
frame
clamp
free ends
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
EP79104023A
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German (de)
French (fr)
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EP0010693A1 (en
Inventor
Josef Baierl
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.)
Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to AT79104023T priority Critical patent/ATE116T1/en
Publication of EP0010693A1 publication Critical patent/EP0010693A1/en
Application granted granted Critical
Publication of EP0010693B1 publication Critical patent/EP0010693B1/en
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B5/00—Clamps
    • B25B5/06—Arrangements for positively actuating jaws
    • B25B5/08—Arrangements for positively actuating jaws using cams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B9/00—Hand-held gripping tools other than those covered by group B25B7/00
    • B25B9/02—Hand-held gripping tools other than those covered by group B25B7/00 without sliding or pivotal connections, e.g. tweezers, onepiece tongs

Definitions

  • the invention relates to a clamp for holding together flat workpieces, in particular sheet metal parts, according to the preamble of claim 1.
  • Such a clamp is known from US-A-1557396.
  • the purpose of the clamping device known from this document is that a piece of leather is clamped between the free ends of the two clamping brackets and is to be stretched.
  • several clamping devices are fastened in series on a base plate, in which the leather piece is then clamped.
  • a toothed bracket is provided at the free end of one clamping bracket, the teeth of which are intended to further increase the clamping effect under tensile stress.
  • the object of the invention is therefore to provide a clamping clip for holding together flat workpieces of the type mentioned at the outset, in which, without additional securing elements, simply by designing the rocker arm in the clamping position, securing against incorrect operation, by which the clamping clip could be opened unintentionally, is achieved.
  • the invention ensures that the clamping position is secured solely by the special design of the rocker arm without additional securing elements, the ease of adjustment of the rocker arm from the open position to the clamping position being maintained due to the rounding provided between the two straight edges meeting one another.
  • the clamp also has a handy shape and handling is extremely easy. It can be easily accommodated in a pocket of work clothes so that it is always available when in use. To operate the clamp, it is sufficient to move the rocker arm to one of the two desired positions (clamped position or open position) with just one finger.
  • the two clamps 1 and 2 are connected to form a U-shaped clip.
  • the clamping brackets are spread apart.
  • the socket 5 can be formed by a U-shaped plate, in the curvature 9 of which a clamp 2 is arranged and fastened there.
  • the clamping bracket 2 can have a part offset to the inside of the other clamping bracket parts by a small distance, to which the U-shaped plate is attached.
  • the clamping bracket 1 rests on the edge 7 of the rocker arm 6, the clamping clip is in the open position shown.
  • the clamping bracket 1 bears against the edge 8 of the rocker arm 6, the clamping clip is in the clamping position shown in FIG. 2.
  • the difference between the distances of the edge 7 and the edge 8 from the pivot axis 10 is greater than the difference which two rubber knobs 3, which are fastened to the front ends of the clamping brackets 1 and 2, have in the open position from one another.
  • the two rubber knobs 3 have on their inner sides the two clamping surfaces, between the clamping positions shown in FIG. 2, the superimposed flat workpieces are pressed against each other.
  • the rocker arm 6 is pivotally attached to the two legs of the U-shaped plate 5 by means of the axis 10. Both in the open position of FIG. 1 and in the closed position of FIG. 2, the rocker arm becomes stable either in the position shown in FIG. 1 or in the position shown in FIG. 2 due to the spring force emanating from the clasp held. This is based on the fact that the clamping bracket 1 lies against an edge 7 or 8 of the rocker arm 6 which extends in the respective position parallel to the bracket 1. The corner in which the two edges 7 and 8 converge can be rounded off in order to facilitate the pivoting of the rocker arm from one position to the other.
  • the free ends of the clamps 1 and 2 can, as can be seen from FIG. 4, be bent into eyelets 4. Rubber knobs 3 can be inserted into the eyelets 4, for example by snapping them into place. A suitable rubber knob is shown in FIGS. 5 and 6.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Clamps And Clips (AREA)

Abstract

1. A clamp for holding together superposed flat workpieces, in particular sheet metal components, with two clamping brackets (1, 2) connected together forming a U-shaped clip, between the free ends (4) of which the workpieces may be clamped, in which the clamping brackets (1, 2), being spread apart by a spring force, are held in a frame (5) determining the separation of the two ends of the clamping brackets, an in which the frame (5) includes an adjusting element which is designed as a rocker arm (6) tiltable into two positions and by means of which the clamping bracket (1), which is movable with respect to the frame (5), can be moved with respect to the clamping bracket (2) fixed to the frame (5) from the open position into the clamping position against the spring force, characterized in that said rocker arm (6) has two straight edges (7, 8) rounded-off at their place of intersection, the movable clamping bracket (1) abutting in parallel position against each one of said straight edges (7, 8) according to the position of said rocker arm (6), the difference between the distance of said straight edges to the swivel arm (10) of said rocker arm (6) being greater than the separation of the clamping surfaces formed at said free ends (4) when said clamp is in its open position.

Description

Die Erfindung befaßt sich mit einer Klemmspange zum Zusammenhalten von aufeinanderliegenden flachen Werkstücken, insbesondere Blechteilen, nach dem Oberbegriff des Anspruchs 1.The invention relates to a clamp for holding together flat workpieces, in particular sheet metal parts, according to the preamble of claim 1.

Eine derartige Klemmspange ist aus der US-A-1557396 bekannt. Der Zweck der aus dieser Entgegenhaltung bekannten Klemmeinrichtung besteht darin, daß zwischen die freien Enden der beiden Klemmbügel ein Lederstück eingespannt wird, das gedehnt werden soll. Es werden hierzu mehrere Klemmeinrichtungen an einer Grundplatte in Reihe befestigt, in die dann das Lederstück eingespannt wird. Es ist hierzu bei der bekannten Vorrichtung ein gezahnter Bügel am freien Ende des einen Klemmbügels vorgesehen, durch dessen Zahnung die Klemmwirkung bei Zugbeanspruchung noch erhöht werden soll.Such a clamp is known from US-A-1557396. The purpose of the clamping device known from this document is that a piece of leather is clamped between the free ends of the two clamping brackets and is to be stretched. For this purpose, several clamping devices are fastened in series on a base plate, in which the leather piece is then clamped. For this purpose, in the known device, a toothed bracket is provided at the free end of one clamping bracket, the teeth of which are intended to further increase the clamping effect under tensile stress.

Im Gegensatz dazu soll beim Verbinden von flachen Werkstücken, insbesondere Blechteiler:, ein Zusammenhalten von aufeinanderliegenden flachen Werkstücken erzielt werden. Hierbei ist es notwendig, daß, vor allem in der Klemmstellung, eine Sicherung vorhanden ist gegen das unbeabsichtigte Öffnen der Klemmspange. Eine derartige Sicherung ist aus der DE-C-175 307 in Form einer Rastklinke bekannt, die in eine Zahnung am Kipphebel eingreift. Die Sicherung gegen unbeabsichtiges Öffnen erfolgt bei dieser bekannten Klemmspange in Form zusätzlicher Sicherungselemente, die am Kipphebel angreifen. Auch die Ausführungsform in der Fig. 7 der US-A-15 57 396 besitzt hierzu eine Flügelschraube. Bei der in der Fig. 1 bis 3 der US-A-15 57 396 gezeigten Ausführungsform besteht nämlich die Gefahr, daß der Kipphebel aus der Klemmstellung bei unbeabsichtigtem leichten Berühren in die geöffnete Stellung kommt, da die am Kipphebel vorgesehene Rolle auf dem beweglichen Klemmbügel aus der Klemmstellung kommend leicht abrollen kann.In contrast to this, when joining flat workpieces, in particular sheet metal dividers:, holding flat workpieces lying on one another is to be achieved. Here it is necessary that, especially in the clamping position, there is a safeguard against unintentional opening of the clamping clip. Such a fuse is known from DE-C-175 307 in the form of a latch which engages in a toothing on the rocker arm. The securing against unintentional opening takes place in the case of this known clamping clip in the form of additional securing elements which act on the rocker arm. The embodiment in FIG. 7 of US-A-15 57 396 also has a wing screw for this purpose. In the embodiment shown in FIGS. 1 to 3 of US-A-15 57 396 there is a risk that the rocker arm will come from the clamping position into the open position if unintentionally lightly touched, since the roller provided on the rocker arm on the movable clamping bracket coming from the clamping position can easily roll off.

Aufgabe der Erfindung ist es daher, eine Klemmspange zum Zusammenhalten von aufeinanderliegenden flachen Werkstücken der eingangs genannten Art zu schaffen, bei der ohne zusätzliche Sicherungselemente allein durch die Ausbildung des Kipphebels in der Klemmstellung eine Sicherung gegen Fehlbedienung, durch die die Klemmspange unbeabsichtigt geöffnet werden könnte, erzielt wird.The object of the invention is therefore to provide a clamping clip for holding together flat workpieces of the type mentioned at the outset, in which, without additional securing elements, simply by designing the rocker arm in the clamping position, securing against incorrect operation, by which the clamping clip could be opened unintentionally, is achieved.

Diese Aufgabe wird durch die im Kennzeichen des Anspruches 1 angegebenen Merkmale gelöst.This object is achieved by the features specified in the characterizing part of claim 1.

In vorteilhafter Weise wird durch die Erfindung allein durch die spezielle Ausbildung des Kipphebels ohne zusätzliche Sicherungselemente eine Absicherung der Klemmstellung erzielt, wobei die leichte Verstellmöglichkeit des Kipphebels aus der geöffneten Stellung in die Klemmstellung aufgrund der zwischen den beiden geradlinigen aufeinandertreffenden Kanten vorgesehenen Abrundung beibehalten wird.In an advantageous manner, the invention ensures that the clamping position is secured solely by the special design of the rocker arm without additional securing elements, the ease of adjustment of the rocker arm from the open position to the clamping position being maintained due to the rounding provided between the two straight edges meeting one another.

Die Klemmspange besitzt außerdem eine handliche Form und die Handhabung ist äußerst einfach. Sie läßt sich ohne weiteres in einer Tasche der Arbeitskleidung unterbringen, so daß sie bei Gebrauch jederzeit verfügbar ist. Zur Bedienung der Klemmspange genügt es, den Kipphebel lediglich mit einem Finger in eine der beiden gewünschten Stellungen (Klemmstellung oder geöffnete Stellung) zu bringen.The clamp also has a handy shape and handling is extremely easy. It can be easily accommodated in a pocket of work clothes so that it is always available when in use. To operate the clamp, it is sufficient to move the rocker arm to one of the two desired positions (clamped position or open position) with just one finger.

In den beiliegenden Figuren ist ein Ausführungsbeispiel der Erfindung dargestellt. Anhand dieser Figuren soll die Erfindung noch näher erläutert werden. Es zeigt

  • Fig. 1 eine Klemmspange als Ausführungsbeispiel in geöffneter Stellung,
  • Fig. 2 die gleiche Klemmspange in Klemmstellung,
  • Fig. 3 die zu einer U-förmigen Spange verbundenen Klemmbügel,
  • Fig. 4 die in der Fig. 3 dargestellten Klemmbügel in Seitenansicht,
  • Fig. 5 eine Gumminoppe, welche jeweils an den Enden der in den Fig. 3 und 4 dargestellten Klemmbügel befestigt werden kann in Seitenansicht und
  • Fig. eine Draufsicht der Gumminoppe der Fig. 5.
An exemplary embodiment of the invention is shown in the accompanying figures. The invention will be explained in more detail with reference to these figures. It shows
  • 1 is a clamp as an embodiment in the open position,
  • 2 the same clamp in the clamped position,
  • 3 shows the clamps connected to a U-shaped clip,
  • 4 is a side view of the clamping bracket shown in FIG. 3,
  • Fig. 5 is a rubber knob, which can be attached to the ends of the clamping bracket shown in FIGS. 3 and 4 in side view and
  • 5 shows a top view of the rubber knob of FIG. 5.

Wie aus den Figuren zu ersehen ist, sind die beiden Klemmbügel 1 und 2 zu einer U-förmigen Spange verbunden. Wie insbesondere aus der Fig. 3 zu ersehen ist, sind die Klemmbügel auseinandergespreizt. Beim Einbau der Spange bzw. der Klemmbügel 1 und 2 in eine Fassung 5, werden die beiden Klemmbügel 1 und 2 selbsttätig aufgrund der in der Spange wirksamen Federkraft in die in der Fig. 1 dargestellte geöffnete Stellung verbracht. Die Fassung 5 kann von einer U-förmig gebogenen Platte gebildet sein, in deren Krümmung 9 der eine Klemmbügel 2 angeordnet und dort befestigt ist. Hierzu kann der Klemmbügel 2 einen gegenüber den übrigen Klemmbügelteilen um eine geringe Strecke na ;h innen versetzten Teil aufweisen, an welchem die U-förmig gebogene Platte befestigt ist. Es ist auch möglich, hier an dieser Stelle die Profilierung des Bügels zu ändern, so daß eine leichtere Befestigungsmöglichkeit im Bereich der Krümmung der U-förmig gebogenen Platte möglich ist. In zusammengebautem Zustand ist daher eine Verschiebung der Fassung 5 gegenüber dem Klemmbügel 2 nicht möglich. Der Klemmbügel 1 ist aufgrund der Federkraft, welche durch die Spange verliehen wird, gegen einen in der Nähe der beiden freien Enden der U-förmig gebogenen Platte 5 angeordneten Kipphebel 6 angedrückt. Dieser Kipphebel 6 weist im wesentlichen zwei Kanten 7 und 8 auf, die gegenüber einer Schwenkachse 10 des Klemmhebels unterschiedliche Abstände aufweisen. Der Abstand der Kante 7 von der Schwenkachse 10 ist kürzer als der Abstand der Kante 8. Wenn wie in der Fig. 1 dargestellt, der Klemmbügel 1 an der Kante 7 des Kipphebels 6 anliegt, befindet sich die Klemmspange in der dargestellten geöffneten Stellung. Wenn der Klemmbügel 1 gegen die Kante 8 des Kipphebels 6 anliegt, befindet sich die Klemmspange in der in der Fig. 2 dargestellten Klemmstellung. Der Unterschied zwischen den Abständen der Kante 7 und der Kante 8 von der Schwenkachse 10 ist größer bemessen als der Unterschied, welche zwei Gumminoppen 3, die an den vorderen Enden der Klemmbügel 1 und 2 befestigt sind, in der geöffneten Stellung voneinander aufweisen. Die beiden Gumminoppen 3 weisen an ihren Innenseiten die beiden Klemmflächen auf, zwischen die in der Fig. 2 dargestellten Klemmstellung die aufeinanderliegenden flachen Werkstücke gegeneinander gepreßt werden.As can be seen from the figures, the two clamps 1 and 2 are connected to form a U-shaped clip. As can be seen in particular from FIG. 3, the clamping brackets are spread apart. When installing the clip or the clamps 1 and 2 in a socket 5, the two clamps 1 and 2 are automatically brought into the open position shown in FIG. 1 due to the spring force acting in the clip. The socket 5 can be formed by a U-shaped plate, in the curvature 9 of which a clamp 2 is arranged and fastened there. For this purpose, the clamping bracket 2 can have a part offset to the inside of the other clamping bracket parts by a small distance, to which the U-shaped plate is attached. It is also possible to change the profile of the bracket at this point, so that an easier attachment in the area of the curvature of the U-shaped curved plate is possible. In the assembled state, it is therefore not possible to move the holder 5 relative to the clamping bracket 2. The clamping bracket 1 is pressed due to the spring force which is imparted by the clasp against a rocker arm 6 arranged in the vicinity of the two free ends of the U-shaped plate 5. This rocker arm 6 essentially has two edges 7 and 8, which are at different distances from a pivot axis 10 of the clamping lever. The distance of the edge 7 from the pivot axis 10 is shorter than the distance from the Edge 8. If, as shown in FIG. 1, the clamping bracket 1 rests on the edge 7 of the rocker arm 6, the clamping clip is in the open position shown. When the clamping bracket 1 bears against the edge 8 of the rocker arm 6, the clamping clip is in the clamping position shown in FIG. 2. The difference between the distances of the edge 7 and the edge 8 from the pivot axis 10 is greater than the difference which two rubber knobs 3, which are fastened to the front ends of the clamping brackets 1 and 2, have in the open position from one another. The two rubber knobs 3 have on their inner sides the two clamping surfaces, between the clamping positions shown in FIG. 2, the superimposed flat workpieces are pressed against each other.

Der Kipphebel 6 ist mittels der Achse 10 an den beiden Schenkeln der U-förmig gebogenen Platte 5 schwenkbar befestigt. Sowohl in der geöffneten Stellung der Fig. 1 als auch in der geschlossenen Stellung der Fig. 2 wird aufgrund der von der Spange ausgehenden Federkraft der Kipphebel entweder in der in der Fig. 1 gezeigten Stellung oder in der in der Fig. 2 gezeigten Stellung stabil gehalten. Dies beruht darauf, daß der Klemmbügel 1 jeweils an einer sich in der jeweiligen Stellung parallel zum Bügel 1 erstrekkenden Kante 7 bzw. 8 des Kipphebels 6 anliegt. Die Ecke, in der die beiden Kanten 7 und 8 zusammenlaufen, kann abgerundet sein, um das Verschwenken des Kipphebels von der einen in die andere Stellung zu erleichtern.The rocker arm 6 is pivotally attached to the two legs of the U-shaped plate 5 by means of the axis 10. Both in the open position of FIG. 1 and in the closed position of FIG. 2, the rocker arm becomes stable either in the position shown in FIG. 1 or in the position shown in FIG. 2 due to the spring force emanating from the clasp held. This is based on the fact that the clamping bracket 1 lies against an edge 7 or 8 of the rocker arm 6 which extends in the respective position parallel to the bracket 1. The corner in which the two edges 7 and 8 converge can be rounded off in order to facilitate the pivoting of the rocker arm from one position to the other.

Die freien Enden der Klemmbügel 1 und 2 können, wie aus der Fig. 4 ersichtlich, zu Ösen 4 gebogen sein. In die Ösen 4 lassen sich Gumminoppen 3 einsetzen, beispielsweise durch Einschnappen. Eine geeignete Gumminoppe ist in den Fig. 5 und 6 dargestellt.The free ends of the clamps 1 and 2 can, as can be seen from FIG. 4, be bent into eyelets 4. Rubber knobs 3 can be inserted into the eyelets 4, for example by snapping them into place. A suitable rubber knob is shown in FIGS. 5 and 6.

Claims (3)

1. A damp for holding together superposed flat workpieces, in particular sheet metal components, with two clamping brackets (1, 2) connected together forming a U-shaped clip, between the free ends (4) of which the workpieces may be clamped, in which the clamping brackets (1, 2), being spread apart by a spring force, are held in a frame (5) determining the separation of the two ends of the clamping brackets, an in which the frame (5) includes an adjusting element which is designed as a rocker arm (6) tiltable into two positions and by means of which the clamping bracket (1), which is movable with respect to the frame (5), can be moved with respect to the clamping bracket (2) fixed to the frame (5) from the open position into the clamping position against the spring force, characterized in that said rocker arm (6) has two straight edges (7, 8) rounded-off at their place of intersection, the movable clamping bracket (1) abutting in parallel position against each one of said straight edges (7, 8) according to the position of said rocker arm (6), the difference between the distance of said straight edges to the swivel arm (10) of said rocker arm (6) being greater than the separation of the clamping surfaces formed at said free ends (4) when said clamp is in its open position.
2. The clamp according to claim 1, characterized in that said frame (5) is formed by a U-shaped curved plate, in the curved portion (9) of which said clamping bracket (2) fixed to said frame (5) in disposed and between the free ends of which said rocker arm (6), against which the movable clamping bracket abuts, is supported.
3. The clamp according to claim 1 or 2, characterized in that said free ends (4) of said clamping brackets (1, 2) are loop-shaped to receive rubber knubs (3).
EP79104023A 1978-10-31 1979-10-18 Clamp for holding flat workpieces, especially metal sheets Expired EP0010693B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT79104023T ATE116T1 (en) 1978-10-31 1979-10-18 CLAMP FOR HOLDING FLAT WORKPIECES TOGETHER, ESPECIALLY SHEET METAL PARTS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19782847345 DE2847345A1 (en) 1978-10-31 1978-10-31 CLAMPING CLASP FOR FLAT WORKPIECES TO BE JOINED, IN PARTICULAR SHEET PARTS
DE2847345 1978-10-31

Publications (2)

Publication Number Publication Date
EP0010693A1 EP0010693A1 (en) 1980-05-14
EP0010693B1 true EP0010693B1 (en) 1981-07-22

Family

ID=6053571

Family Applications (1)

Application Number Title Priority Date Filing Date
EP79104023A Expired EP0010693B1 (en) 1978-10-31 1979-10-18 Clamp for holding flat workpieces, especially metal sheets

Country Status (3)

Country Link
EP (1) EP0010693B1 (en)
AT (1) ATE116T1 (en)
DE (1) DE2847345A1 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT8321233V0 (en) * 1983-03-23 1983-03-23 Modolo Adamo & C DEVICE FOR FIXING A BRAKE PAD IN A BICYCLE.
US4602704A (en) * 1984-03-27 1986-07-29 Modolo Adamo & C. S.N.C. Fastening device for a bicycle brake block
CH668377A5 (en) * 1985-12-06 1988-12-30 Walter Brauchli COMPULSORY CLAMPING TOOL.
FR2652102B1 (en) * 1989-09-20 1992-05-07 Bordeaux Ville CANINE DEJECTION PLIERS.
CN2204457Y (en) * 1994-05-13 1995-08-02 陈鸿铭 Antenna-fixing seat
FR2861621B1 (en) * 2003-10-30 2006-01-13 Jean Paul Vidal PINCE GAIN
WO2012099873A1 (en) * 2011-01-18 2012-07-26 Minipums, Llc Surgical implantation instrument
WO2013052795A2 (en) 2011-10-05 2013-04-11 Journey Michelle L Instruments and methods for surgical sizing and marking
JP6996760B2 (en) 2019-07-17 2022-01-17 Ｓｉｍｉａｎ合同会社 Holding tool
CN111043470A (en) * 2019-12-20 2020-04-21 西安恒博软件科技有限公司 Positioning device for big data all-in-one machine

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE175307C (en) *
US1557396A (en) * 1924-05-27 1925-10-13 Proctor & Schwartz Inc Toggle

Also Published As

Publication number Publication date
EP0010693A1 (en) 1980-05-14
ATE116T1 (en) 1981-08-15
DE2847345A1 (en) 1980-05-08

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