KR100425833B1 - Structure of the multi-purpose terminal block - Google Patents
Structure of the multi-purpose terminal block Download PDFInfo
- Publication number
- KR100425833B1 KR100425833B1 KR10-2001-0033993A KR20010033993A KR100425833B1 KR 100425833 B1 KR100425833 B1 KR 100425833B1 KR 20010033993 A KR20010033993 A KR 20010033993A KR 100425833 B1 KR100425833 B1 KR 100425833B1
- Authority
- KR
- South Korea
- Prior art keywords
- terminal block
- contact
- line
- housing
- lead
- Prior art date
Links
- 238000003780 insertion Methods 0.000 claims abstract description 16
- 230000037431 insertion Effects 0.000 claims abstract description 16
- 230000008878 coupling Effects 0.000 claims abstract description 10
- 238000010168 coupling process Methods 0.000 claims abstract description 10
- 238000005859 coupling reaction Methods 0.000 claims abstract description 10
- 238000012360 testing method Methods 0.000 claims abstract description 9
- 238000009434 installation Methods 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 2
- 238000004891 communication Methods 0.000 abstract description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- 239000011889 copper foil Substances 0.000 description 4
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000004020 conductor Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
- H01R9/22—Bases, e.g. strip, block, panel
- H01R9/24—Terminal blocks
- H01R9/2416—Means for guiding or retaining wires or cables connected to terminal blocks
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
- F16B5/02—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of fastening members using screw-thread
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
- H01R9/22—Bases, e.g. strip, block, panel
- H01R9/24—Terminal blocks
- H01R9/26—Clip-on terminal blocks for side-by-side rail- or strip-mounting
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Connections Arranged To Contact A Plurality Of Conductors (AREA)
Abstract
본 발명은 다기능 단자블록의 구조에 관한것으로, 회선인입부와 회선인출부가 대응되게 길이방향으로 형성되고, 측면에 다수개의 결합공이 형성된 하우징과, 상기 하우징의 회선인입부와 회선인출부에 각각 삽입되는 다수개의 접촉핀과, 상기 하우징의 결합공에 삽결되도록 다수개의 몸체돌기가 형성된 몸체부를 가지는 단자블록에 있어서, 상기 하우징의 회선인입부 및 회선인출부로 접촉핀이 삽입되도록 저부에 형성되는 삽입홈이 상기 접촉핀의 접촉보가 서로 접촉되어 스위칭접촉부가 형성되도록 근접하게 형성되어, 통신서비스 제공자나 가입자의 욕구에 따라 절분시험과 멀티구성, 또는 회로기의 소켓 등의 다용도로 사용할 수 있으며, 또한 사용중 최초의 설치용도와 관계없이 용도를 변경하여 사용할 수 있는 효과가 있다.The present invention relates to a structure of a multi-function terminal block, the line lead-in and the line lead-out is formed in the longitudinal direction correspondingly, the housing is formed with a plurality of coupling holes on the side, the line lead-in and the line lead-out of the housing respectively In the terminal block having a plurality of contact pins and a body portion having a plurality of body projections to be inserted into the coupling hole of the housing, an insertion groove formed in the bottom portion so that the contact pins are inserted into the line inlet and the line outlet of the housing The contact beams of the contact pins are formed in close contact with each other to form a switching contact, and can be used for multi-purpose such as cut test, multi-configuration, or socket of a circuit device according to the needs of a communication service provider or subscriber. Regardless of the initial installation purpose, it is possible to change the use.
Description
본 발명은 다기능 단자블록의 구조에 관한 것으로, 보다 상세하게는 통신케이블의 분기점에서 인입선 및 인출선을 각각 단자블록의 회선인입부 및 회선인출부에 결선하거나, 또는 절분잭 또는 멀티잭을 접속시켜 구내상호간 또는 구내외간 통신케이블의 절분시험 및 멀티구성을 할 수 있는 다기능 단자블록의 구조에 관한 것이다.The present invention relates to a structure of a multi-function terminal block, and more particularly, by connecting an incoming line and an outgoing line at a branch point of a communication cable, respectively, or by connecting a split jack or a multijack to a line entry part and a line out part of a terminal block. The present invention relates to a structure of a multi-function terminal block capable of chip testing and multi-configuration of communication cables between premises or between premises.
일반적으로, 종래의 단자블록은 그 구조에 있어서 인입 및 인출부의 접촉핀이 일자형, ㄷ자형, U자형 등의 일체형으로 구성되어 있고, 인입 및 인출간의 분기점을 직렬로 연결하는 단자블록 구조이다.In general, in the structure of the conventional terminal block, the contact pins of the lead-in and lead-out portions are composed of one-piece, U-shaped, U-shaped, and the like, and have a terminal block structure connecting the branching points between the lead-in and the lead-out in series.
그러나, 상기한 바와 같은 종래의 단자블록 구조는 절분시험 및 멀티기능이 되지 않는 단자블록으로서 선로와 단자간의 접촉여부만 시험되고 인입, 인출간을 분리하여 절분시험을 할 수 없으므로 선로상에 문제가 있을 시 쉽게 문제 부분을 파악할 수가 없었고, 단자블록 자체적으로는 멀티구성을 할 수 없으며, 음성급의 경우에 멀티를 구성하기 위해 인입 또는 인출되는 케이블 한 가닥에 멀티 전용잭을 사용하거나 단자블록을 추가함으로서 작업시 불편함과 경우에 따라 통신이 중단되어야 되는 등의 문제점이 있었다.However, the conventional terminal block structure as described above is a segment block test and a multi-function terminal block, only the contact between the line and the terminal is tested, and the segment test cannot be performed by separating the lead and the lead. If there is a problem, the problem part could not be easily grasped, and the terminal block itself cannot be multi-configured, and in the case of voice level, a multi-dedicated jack or a terminal block is added to one strand of cable that is input or drawn out to construct the multi. By doing so, there was a problem such as inconvenient work and communication should be interrupted in some cases.
이에 본 발명은 상기한 바와 같은 문제점들을 해결하기 위해 안출한 것으로서, 인입부와 인출부에 삽입되는 접촉핀의 접촉보를 상호 대칭되게 조립하여 스위칭구조로 형성시켜 단자블록 자체적으로 멀티기능을 구성할 수 있고, 절분시험을 통해 선로의 문제발생 부분을 쉽게 파악할 수 있으며, 회로기소켓 등의 다용도로 사용할 수 있는 다기능 단자블록의 구조를 제공하는데 그 목적이 있다.Accordingly, the present invention has been made to solve the above problems, the contact beams of the contact pins inserted into the lead-in and the lead-out portion is assembled symmetrically to form a switching structure to configure the multi-function terminal block itself. In addition, through the cut test, the problem part of the line can be easily grasped, and its purpose is to provide a structure of a multifunctional terminal block that can be used for various purposes such as circuit sockets.
상기한 목적을 달성하기 위한 본 발명에 따른 다기능 단자블록의 구조는, 회선인입부와 회선인출부가 대응되게 길이방향으로 형성되고, 측면에 다수개의 결합공이 형성된 하우징과, 상기 하우징의 회선인입부와 회선인출부에 각각 삽입되는 다수개의 접촉핀과, 상기 하우징의 결합공에 삽결되도록 다수개의 결합돌기가 형성된 몸체부를 가지는 단자블록에 있어서, 상기 하우징의 회선인입부 및 회선인출부로 접촉핀이 삽입되도록 저부에 형성되는 삽입홈이 상기 접촉핀의 접촉보가 서로 접촉되어 스위칭접촉부가 형성되도록 근접하게 형성됨을 특징으로 한다.The structure of the multi-function terminal block according to the present invention for achieving the above object, the line lead-in and the line lead-out is formed in the longitudinal direction correspondingly, a housing having a plurality of coupling holes formed on the side, and the line lead-in of the housing and A terminal block having a plurality of contact pins respectively inserted into the line lead-out part and a body portion having a plurality of coupling protrusions to be inserted into the coupling hole of the housing, wherein the contact pins are inserted into the line lead-in and line lead-out of the housing. Insertion grooves formed in the bottom is characterized in that the contact beams of the contact pins are formed in close proximity to each other to form a switching contact.
도 1은 본 발명에 따른 다기능 단자블록의 결합을 도시한 사시도,1 is a perspective view showing the coupling of the multi-function terminal block according to the present invention;
도 2는 본 발명에 따른 다기능 단자블록의 구조를 도시한 분해사시도,2 is an exploded perspective view showing the structure of a multifunctional terminal block according to the present invention;
도 3은 본 발명에 따른 단자블록 접촉핀을 도시한 사시도,3 is a perspective view illustrating a terminal block contact pin according to the present invention;
도 4는 본 발명에 따른 인입, 인출부 접촉핀의 스위칭접촉을 도시한 사시도,Figure 4 is a perspective view showing a switching contact of the inlet, outlet contact pin according to the invention,
도 5는 본 발명에 따른 단자블록의 절분잭을 도시한 사시도,5 is a perspective view showing a cutting jack of the terminal block according to the present invention;
도 6은 본 발명에 따른 단자블록의 멀티잭을 도시한 사시도,6 is a perspective view illustrating a multijack of a terminal block according to the present invention;
도7은 본 발명에 따른 단자블록과 절분잭과 멀티잭, 그리고 도선과의 조립상태를 도시한 조립도.Figure 7 is an assembly diagram showing the assembly state of the terminal block, the cutting jack and the multi-jack, and the conductor in accordance with the present invention.
-도면의 주요부분에 대한 부호의 설명-Explanation of symbols on the main parts of the drawing
10 : 하우징 11 : 상단삽입홈10: housing 11: top insertion groove
12 : 하우징결합공 13 : 인입부12: housing coupling hole 13: inlet
14 : 인출부 20 : 접촉핀14: withdrawal part 20: contact pin
21 : 인입접촉핀 22 : 인출접촉핀21: draw contact pin 22: draw contact pin
23 : 결선부 24 : 접촉보23: connection part 24: contact beam
25 : 스위칭접촉부 30 : 몸체부25: switching contact portion 30: body portion
31 : 하단삽입홈 32 : 몸체돌기31: lower insertion groove 32: body protrusion
33 : 장착홈 34 : 장착돌기33: mounting groove 34: mounting projection
35 : 나사홀 40 : 절분잭35: screw hole 40: cutting jack
41 : 잭접촉부 42 : 잭케이블41: jack contact 42: jack cable
50 : 멀티잭 51 : 취출고리50: multijack 51: take out
52 : 가이드고정부 53 : A접촉부52: guide fixing 53: A contact
54 : B접촉부 55 : 동박홀54: B contact part 55: Copper foil hole
60 : 인입선 70 : 인출선60: leader line 70: leader line
80 : 나사 90 : 수지장착물80: screw 90: resin fittings
100 : 단자블록100: terminal block
이하, 본 발명을 첨부한 예시도면을 참조하여 상세히 설명한다.Hereinafter, with reference to the accompanying drawings, the present invention will be described in detail.
도 1은 본 발명에 따른 다기능 단자블록의 구조를 도시한 전체 외관사시도로서, 도면에 도시된 바와 같이 상기 단자블록(100)의 상단에는 통신선로 분기점에서의 선로연결을 위한 회선 인입부(13) 및 인출부(14)가 횡방향으로 다수개 형성된다.1 is an overall perspective view showing the structure of a multi-function terminal block according to the present invention, as shown in the upper end of the terminal block 100, the line inlet 13 for the line connection at the communication line branch point And a plurality of lead portions 14 are formed in the transverse direction.
여기서, 상기 통신선로의 인입선(60)은 단자블록의 인입부(13)에 인출선(70)은 단자블록의 인출부(14)에 결선되어 구내상호간 및 구내외간의 통신케이블을 각 분기점에서 연결하여 사용하며, 라인을 구성하는데 있어서 스위칭구조의 아이디씨형 접촉핀(20)의 접촉보(24)가 서로 접촉되도록 인입부와 인출부에 상기 접촉핀을 삽입하여 인입접촉핀(21)과 인출접촉핀(22)간에 스위칭접촉부(25)를 구성하여 케이블 한가닥에 대한 인입, 인출부를 구성한다.Here, the lead wire 60 of the communication line is connected to the lead portion 13 of the terminal block and the lead line 70 is connected to the lead portion 14 of the terminal block to connect the communication cable between the interconnection and internal and external premises at each branch point. In the construction of the line, the contact pins 24 of the ID-type contact pin 20 of the switching structure are contacted with each other so that the contact pins are inserted into the inlet and the outlet to draw out the contact pins 21 and the lead. A switching contact 25 is formed between the contact pins 22 to form a lead-in and lead-out unit for one strand of cable.
상기한 방법으로 구성된 인입부와 인출부는 단자블록(100)의 횡방향인 타측에도 동일하게 조립하여 1라인을 형성하게 되며, 인접라인 또한 이와 동일하게 구성하여 다수의 접촉핀으로 단자블록을 구성하고 두개의 라인마다 칸막이벽을 두어 절분잭(40)이나 멀티잭(50) 또는 회로기(미도시) 등의 삽입시 가이드 및 접촉점을 맞추기 위한 역할과 기구적으로 인입부와 인출부를 구성하기 위한 구조를 갖춘다.The lead-in and lead-out parts constructed as described above are similarly assembled on the other side in the transverse direction of the terminal block 100 to form one line. A partition wall is provided for each of two lines to serve as a guide and a contact point when inserting a cutting jack 40, a multijack 50, or a circuit device (not shown), and a structure for constructing a lead and a lead out mechanically. Equipped.
그리고, 칸막이벽 안에 형성된 하우징(10)의 상단삽입홈(11)과 몸체의 하단 삽입홈(31)을 서로 일치되게 관통이 되도록 구성하여 절분잭(40), 멀티잭(50), 회로기 등을 삽입시 삽입 방향을 단자블록(100)의 앞, 뒤 구분없이 설치 환경이나 용도에 맞게 자유롭게 삽입할 수 있도록 구성하며 경우에 따라 상단삽입홈(11)이나 하단삽입홈(31) 중 일부를 막아 상대물의 삽입 극성을 구분하게 구성할 수도 있다.In addition, the upper cutting groove 11 of the housing 10 formed in the partition wall and the lower insertion groove 31 of the body are configured to penetrate to match each other, the cutting jack 40, the multi-jack 50, the circuit When inserting it, the insertion direction can be inserted freely according to the installation environment or use without distinction between the front and rear of the terminal block 100. In some cases, the upper insertion groove 11 or the lower insertion groove 31 is blocked. It may be configured to distinguish the insertion polarity of the counterpart.
상기 단자블록의 장착 방식은, 나사로 장착시 나사홀(35)에 삽입하여 실내단자함 등에 장착하고, 도 7과 같은 유형의 수지장착물(90)을 사용하여 장착시 장착돌기(91)가 장착홈(33)에 삽입되어 고정되는 단자블록의 구조를 갖춘다.Mounting method of the terminal block is inserted into the screw hole (35) when mounted with screws, mounted in the indoor terminal box, etc., when the mounting projection 91 is mounted using a resin mounting (90) of the type shown in Figure 7 (33) has a structure of a terminal block fixed to it.
상기한 구성으로 이루어진 다기능 단자블록의 조립 및 기능을 설명하면 다음과 같다.Referring to the assembly and function of the multi-function terminal block made of the above configuration as follows.
먼저, 하우징(10)의 인입부(13)와 인출부(14)에 접지핀의 접촉보(24)가 서로 접촉되어 스위칭접촉부(25)를 구성하도록 접촉핀을 조립하고, 몸체부(30)의 몸체돌기(32)가 하우징결합공(12)에 삽입되도록 몸체를 조립하여 단자블록(100)을 완성한다.First, the contact pins 24 of the ground pins are brought into contact with each other of the lead portion 13 and the lead portion 14 of the housing 10 to assemble the contact pins to form the switching contact portion 25, and the body portion 30 The body protrusion 32 is assembled to the body to be inserted into the housing coupling hole 12 to complete the terminal block 100.
상기와 같이 구성된 단자블록에 인입선과 인출선을 결선하여 통신서비스 운용중 필요에 따라 절분시험을 하는데 있어서 절분잭(40)의 잭접촉부(41)가 상기 하우징의 상단삽입홈(11)으로 먼저 삽입되게 하거나, 또는 몸체의 하단삽입홈(31)으로 삽입되게 하여 인입접촉핀(21)과 인출접촉핀(22)의 접촉보(24)가 서로 접촉되어 구성한 스위칭 접촉부(25)를 PCB로 구성된 잭접촉부(41)가 단락을 시키게 된다.The jack contact portion 41 of the cutting jack 40 is first inserted into the upper insertion groove 11 of the housing when the cutting line and the lead wire are connected to the terminal block configured as described above to perform the cutting test as necessary during the communication service operation. Or a switching contact portion 25 formed by contacting each other with the contact beams 24 of the inlet contact pin 21 and the outlet contact pin 22 so as to be inserted into the lower insertion groove 31 of the body. The contact portion 41 causes a short circuit.
이에 따라, 인입접촉핀(21)의 접촉보와 인출접촉핀(22)의 접촉보가 서로 접촉이 되어 선로시험기의 클립과 절분잭의 잭케이블(42)의 종단에 부착된 클립(미도시)을 서로 연결하여 선로 시험의 기능을 하게 되며 선로 점검 후 상기 절분잭(40)을 단자블록으로부터 이탈시키면 다시 인입접촉핀(21)과 인출접촉핀(22)이 서로 접촉되어 인입, 인출간을 서로 접촉시키거나 단락시키는 기능을 하게 된다.Accordingly, the contact beams of the inlet contact pins 21 and the contact beams of the outlet contact pins 22 come into contact with each other, so that the clip (not shown) attached to the clip of the line tester and the end of the jack cable 42 of the chipping jack is removed. It functions as a line test by connecting to each other. After checking the line, the cutting jack 40 is separated from the terminal block, and the inlet contact pin 21 and the outlet contact pin 22 are in contact with each other, thereby making contact between the inlet and the outlet. To short or to short.
또한, 도 6에 도시된 바와 같은 멀티잭(50)의 구성을 설명하면 다음과 같다.In addition, the configuration of the multi-jack 50 as shown in Figure 6 as follows.
상기 단자블록(100)의 임의의 1번, 2번, 3번, 4번의 접촉핀과 멀티잭의 A접촉부(53), B접촉부(54)를 접촉시키는데 있어서, 멀티잭(50)의 접촉 동박의 구성은 접촉핀(20)의 1번과 3번이 서로 연결되도록 하고, 또한 후면에도 이와 대칭되게 구성하여 전면과 후면을 동박홀(55)로 서로 연결되도록 한다.Contact copper foil of the multijack 50 in contacting any of the contact pins 1, 2, 3 and 4 of the terminal block 100 with the A contact portion 53 and the B contact portion 54 of the multijack. The configuration of the contact pins 20 and 1 and 3 are to be connected to each other, and also configured to be symmetrical to the back so that the front and rear to be connected to each other by the copper foil hole (55).
그리고, 나머지 2번과 4번도 상기와 동일하게 동박을 구성하여 하우징의 상단삽입홈(11)으로 먼저 삽입하거나 또는 몸체의 하단삽입홈(31)으로 삽입시 인입접촉핀과 인출접촉핀의 접촉보(24)가 서로 접촉되어 구성된 스위칭 접촉부(25)를 멀티잭(50)이 단락을 시키면서 인입접촉핀과 인출접촉핀이 멀티잭의 A접촉부(53)와 B접촉부(54)의 전면과 후면에 각각 접촉이 되며 인접 라인과 라인을 서로 연결하게 된다.And, the remaining 2 and 4 also constitute the copper foil in the same manner as described above to insert into the upper insertion groove 11 of the housing first, or when inserted into the lower insertion groove 31 of the body contact beam of the inlet contact pin and the withdrawal contact pin. The inlet contact pin and the outlet contact pin are connected to the front and rear surfaces of the A contact portion 53 and the B contact portion 54 of the multijack while the multijack 50 short-circuits the switching contact portion 25 formed by contacting the 24 with each other. Each contact is made, and adjacent lines and lines are connected to each other.
이때, 상기 멀티잭(50)의 삽입위치를 정확히 하기 위해 가이드고정부(52)를 형성시켜 단자블록(100)에 장착되도록 하는 것과 상기 멀티잭을 이탈시키기 위해서는 취출고리(51)를 형성시키는 것이 바람직하다.At this time, in order to accurately insert the multijack 50, the guide fixing portion 52 is formed to be mounted on the terminal block 100, and to remove the multijack to form the take-out ring 51. desirable.
또한, 상기 접촉 및 단락이 되도록 고안된 다기능 단자블록의 구조는 회로기의 소켓 등의 다목적으로도 그 기능을 할 수 있다.In addition, the structure of the multi-function terminal block designed to be the contact and short-circuit can also function as a multipurpose socket and the like.
이상에서 설명한 바와 같이, 본 발명에 따른 다기능 단자블록의 구조는, 통신서비스 제공자나 가입자의 욕구에 따라 절분시험과 멀티 구성, 그리고 회로기의소켓 등의 다용도로 사용할 수 있으며, 또한 사용중 최초의 설치용도와 관계없이 용도를 변경하여 사용할 수 있는 효과가 있다.As described above, the structure of the multi-function terminal block according to the present invention can be used for multi-purposes such as cut test, multi-configuration, and socket of a circuit according to the needs of a communication service provider or subscriber, and also the first installation during use. Regardless of the purpose of use, it is possible to change the use.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2001-0033993A KR100425833B1 (en) | 2001-06-15 | 2001-06-15 | Structure of the multi-purpose terminal block |
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| Application Number | Priority Date | Filing Date | Title |
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| KR10-2001-0033993A KR100425833B1 (en) | 2001-06-15 | 2001-06-15 | Structure of the multi-purpose terminal block |
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| KR100425833B1 true KR100425833B1 (en) | 2004-04-03 |
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| KR20020075681A (en) * | 2001-03-27 | 2002-10-05 | 주식회사 케이티 | Multipurpose idc type connecting block |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR20020075681A (en) * | 2001-03-27 | 2002-10-05 | 주식회사 케이티 | Multipurpose idc type connecting block |
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