US2952828A - Terminal board arrangement for selective interconnection - Google Patents

Terminal board arrangement for selective interconnection Download PDF

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Publication number
US2952828A
US2952828A US650377A US65037757A US2952828A US 2952828 A US2952828 A US 2952828A US 650377 A US650377 A US 650377A US 65037757 A US65037757 A US 65037757A US 2952828 A US2952828 A US 2952828A
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US
United States
Prior art keywords
members
terminal board
openings
connecting members
elements
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
US650377A
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English (en)
Inventor
Dorizzi Manfred Prosper
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.)
Rheinmetall Air Defence AG
Original Assignee
Oerlikon Contraves AG
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/20—Bus-bar or other wiring layouts, e.g. in cubicles, in switchyards
    • H02B1/207—Cross-bar layouts
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00—Arrangements for program control, e.g. control units
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
    • H01R24/76—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure with sockets, clips or analogous contacts and secured to apparatus or structure, e.g. to a wall
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R29/00—Coupling parts for selective co-operation with a counterpart in different ways to establish different circuits, e.g. for voltage selection, for series-parallel selection, programmable connectors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2107/00—Four or more poles

Definitions

  • the present invention relates to a terminal board arrangement. More particularly, the present invention relates to a method of making a terminal board arrangement and a terminal board arrangement for permitting various interconnections to be made between a large plurality of conductive'members.
  • the present invention permits a large variety of different connections to be made while eliminating any requirement for long connecting cables or for selector switches ⁇ p It is accordingly an object ⁇ of vthe present yinvention to overcome the disadvantages of the prior art described hereinabove.
  • a second object ⁇ of the present invention is to provide a new and improved terminal board arrangement.
  • Another object of the present invention is to provide a new and improved terminal board arrangement wherein a large number of different electrical connections can be made by inserting shorting plugs in specified positions of the terminal board. 4
  • Still another object of the present invention is to provide a new and improved terminal board arrangement including a plurality of crossing connecting members which cross at openings in the terminal board and thereby permit the same to be connected to each other.
  • the present invention mainly consistsof a terminal board arrangement including a base member made of an electrically insulating material and being formed with a plurality of openings therein, at least a first electrically conductive elongated connecting member arranged in the base member and eX- tending in a first direction, the connecting member having a plurality of spaced connecting elements, each of which communicates respectively with at least one of the openings of the base member, and at least a second Patented Sept. 13, .1960
  • the second electrically conductive member having a plurality of spaced connecting elements, each of which communicates respectively with at least one of the openings of the base member, whereby connecting elements of the first and second connecting members communicate with the same opening of the terminal board where the connecting members cross each other so that the rst and second connecting members can be electrically connected to each other at the same opening.
  • a preferred method for carrying out the present invention includes the steps of inserting groups of electrically conductive plates in a casting mold, the plates crossing each other, maintaining the electrically conductive plates electrically insulated from each other, inserting molding core elements between the electrically conductive plates wherever the same cross each other, and lling the casting mold with soliditiable electrically insulating material in a owable form so that upon hardening of the solidiiable material and removal of the molding core elements, a terminal board is produced having openings wherein the conductive plates may be electrically connected to each other.
  • the terminal board arrangement includes a plurality of separate units each of the uni-ts including openings permitting the interconnection between electrical platesV thereof.
  • each unit contains terminals which L appended claims.
  • Fig.4 l is al front elevational view of a terminal board arrangement constructed in accordance with the principles of the present invention.
  • Fig. 2 is a transverse sectional view taken along line f I1-n of Fig. 1;
  • Fig. 3 is a ⁇ sectional view taken along the line Ill- III of Fig. 1;
  • i Fig. 4 is a diagrammatic view partly in section show-v in g a connecting plug used with the terminal board arrangement;
  • v Fig. 5 is a perspective diagrammatic representation showing the constructional elements of the conductive,
  • Fig. 6 is a perspective view of a molding core element u sed for making the terminal board arrangement.
  • the terminal ⁇ board includes three terminal board units A1, A2 and A3. .
  • terminal board A which includes the above three units isV made of electrically insulating Vmaterial such asa synthetic resin, ⁇ for example.
  • Vmaterial such as a synthetic resin
  • the elements 110 extend in a direction transverse to the direction in which the elee ments B are elongated. Each of the elements B therefore forms a comb-like member.
  • a Y
  • Fig. 5 is ⁇ can also be seen that the members C are arranged transverse to the members B and accordingly cross over these members.
  • Each 'of the members C is formed with a plurality of connecting elements 111 which extend in a first direction transverse to the direction of elongation of the members -B and a plurality of second spaced velements 112 which extend in the direction opcomb-like effect foreach of the members C.
  • Fig. 5 an intersection between theelementB and the element C in the central unit is shown. It can be seen that the spacing between the elements 112 permit the members C to cross the memberspB without contacting the same so that 'the members B ,and C can remain electrically insulated from each other as they are supported in the terminal board arrangement.
  • the member C41 in units A1 six members C are arranged, including the members C41-C46. These members each extend in the horizontal direction so that the finger-like connecting elements 111 thereof communicate With the series of horizontal holes D in the unitrAl. That is, it can be-seen that in the unit All, the member C41, for example, includes elements 111 which communicate with two separate openings D in the terminal board unit. These elements 111 are spaced so asV to be on opposite sides with respect to the axis of the opening in the terminal board unit.
  • the terminal board unit A1 includes six B members respectively .identified vas members B11-B16. These members extend in a direction transverse to the C members and have the finger-like connecting elements 110 thereof communicating with the D openings in the Unit A1; municate with adjacent openings D in a manner similar to the members C.
  • This plug member G is formed with-a resilient electrically conductive contacting portion G1 and an electrically insulating handle portion G2.
  • the plug G is inserted in any one of the D openings in the unit A1, an electrical connection is immediately made between the Band C members which cross at the respective opening.
  • a plug G is shown inserted in the openings corresponding to the positions Where the member B12 crosses the members C43 and C45, respectively. -It is therefore apparent that, for the illustrated example, the member B12 is connected to both the C43 member and the C45 member.
  • the unit'A2 is provided with six B members, B214B26 and six C members, CS1-C56;
  • the A3 unit include: six B members, BSI-B36 and six C members,Y
  • thevplug G is inserted at the opening wherein the member B23 crosses the member C53 and in the A3 unit, the plug G is inserted at the opening wherein the member B34 crosses the member C61.
  • Figs. 1, 2 'and 3 also have some additional features. It can be seen that in the unit A1, for example, the conductive memberV C41 actually communicates with eight different openings in the terminal board. The first six openings, identified as D openings, correspond to the crossing points with the members B11-B16. The next Vtwo openings which are actually shown with plugged inserts in Fig. l, identified asvE openings, do not provide any 'connection with any of the B members ranged in the unit A1. Rather, the purpose of these two additional holes for the C member C41 is to permit this C member to be connected to any of the other C members, if desired. For this purpose, a cable connector such as shown partially in Fig. 2 is provided having a plug at one end 'similar to the G plug illustrated in Fig. 4 but the pin portion G1 of the G plug being connected to a cable and the other end of the cable having a similar plug.
  • a cable connector such as shown partially in Fig. 2 is provided having a plug at one end
  • Fig. 1in the unit A1 the unit C41 is shown connected to the member C42 by means of two G plugs connected in the E openings of 'the terminal board, the plugs being connected by means of the cable K1.
  • the E openings in the terminal board are the openings which correspond only to one of the members in the unit. This can be seen in the E openings C51 of the unit A2, for example.
  • the F sockets are 1,2 sockets arranged in two rows of six each in each of the units A1, A2 and A3. Two such F sockets, F22 and F32 can be seen in the cross sectional view of Fig. 2, for example.
  • Each of the F sockets or terminals is arranged in one unit and is connected electrically to a yB member of another'unit. Dotted lines are shown in Fig. l to indicate the electrical connection between the units and the F sockets.
  • the unit F26 which is the lowermost F socket at the left-hand size is electrically connected to the member B26 in the unit A2 and solely to this member.
  • the F member F22 is connected to the B member B22 of the unit A2 and solely to this member.
  • a conductor x1 connects Ithe F member F22 to the B vmember B22.
  • the conductor x1 comprises any suitable electrical conductor and may be supported in or behind the molded terminal board A in any suitable manner known in the art.
  • the F member F35 is connected to the B member B35 of the unit A3 and solely to this B member.
  • the two columns of F sockets correspond respectively to the members B21-B26, at the left hand column and the members B31-B36 in the right hand column.
  • the member C41 is shown connected to the socket F23 by means of two G plugs and a cable K2. Such a connection clearly lconnects the Vmember C41 to the member B23 of the unit A2.
  • the socket F35 clearly s connected to the member B35 of the unit A3 so that the member C46 is electrically connected to the member lB35 of unit A3 by the illustrated connection.
  • the terminal board arrangement of the present invention utilizes a total of 144 openings in the terminal board arrangement. Yet, with these 144 openings it is possible to make any one of the desired connections between the 18 'B members and the 18 C members or among the B or C members themselves. In this respect it should be noted that it is possible to connect B11 to B12, for example, by connecting the corresponding F sockets in the A units or the A3 units together.
  • Figs. l, 2 and 3 provides a terminal board arrangement wherein the openings for plugging in the plugs G are provided with four different radially inwardly projecting elements, each of which are displaced 90 from each other in the illustrative example. Two of these elements are the elements 111 of the C member and the other two are the elements 110 of the B member. Therefore when the resilient portion G1 of the G plug is inserted in the D opening corresponding to the proper crossing point of the B and lC members, a positive electrical connection is made between these members since two separate elements of each of the members are connected together resiliently.
  • the insulating handle portion G2 of the G plug can preferably be made of a distinctive color so that the connection points on the terminal board quickly stand out to an observer.
  • the small cables which are used to connect the K plugs are all arranged so that they are connected outside of the crossing D openings of the terminal board and therefore do not cover any of the D openings. Such is not the case in the conventional terminal board arrangements using cables.
  • the connecting members B and C are arranged as shown in Fig. 5.
  • the B members are shown held spaced from each other by spacers H. Similar spacers are provided for the C members.
  • core plugs l as shown in Fig. 6 are inserted at each crossing point of the B and C members as shown in the central unit of Fig. 5.
  • the molding core pins I are provided with four angularly spaced grooves 11-14, each of which cooperate respectively with one of the connecting elements of the B and C members.
  • 'I'hat is two of the grooves I1 and I3, for example, coopcrate with the elements 111 of the C member and the grooves I2 and I4 cooperate with the elements 110 of the crossing B member.
  • the entire unit which has been thus assembled in the casting mold, is surrounded by solidiiiable insulating material in iiowable form.
  • the insulating material is introduced into the casting mold and surrounds the various conducting B and C members. After the material hardens, the core plugs I and the spacers H are removed. The D openings are left by the core plugs I.
  • electrical connections such as for example, conductors z1, z2 and z3, may connect selected ones of the B and ⁇ C members to the external circuit; the conductor' Z1 being connected to one of the holes B0, the conductor z2 being connected to another of the holes B0 and the conductor z3 being connected to one of the holes C0.
  • spacers H which are preferably made of rubber, keep the yconnecting holes B0 and C0 clear during the molding operation.
  • the front face of the entire terminal board arrangement can be milled so as to be planar to present a smooth front face which can be mounted in an appropriate manner.
  • a base member made of ⁇ an electrically insulating material; at least a Ifirst electrically conductive elongated connecting member arranged on said base member and extending in a first direction, said connecting member having a plurality of spaced contact ngers having confronting transverse edges; at least a second electrically conductive connecting member arranged on said base member extending in a second direction and crossing said rst connecting member between parallel planes without contacting the same, said second electrically conductive member having a plurality of spaced contact fingers having confronting transverse edges, the contact iingers of said iirst and second connecting members being located between parallel planes and extending in the same direction; and a plug adapted to be inserted in the space between said transverse confronting edges of said rst and second contact fingers so that said first and second connecting members may be electrically connected to each other by insertion of said plug.
  • a base member made of an electrically insulating material and being formed with a plurality o f openings therein; at least a rst electrically conductive elongated planar connecting member arranged on said base member and extending in a first direction, said iirst connecting member having a plurality of spaced contact fingers, each of which communicates respectively with at least one of the openings of said base member; and at least a second electrically conductive elongatedV planar connecting member arranged on said base mem-ber extending in a second direction and crossing said rst connecting member without contacting the same, said second electrically conductive member having ra plurality o'f spaced contact fingers extending in the same direction as the contact lingers of said first connecting member, each of which communicates respectively with at least one ofthe openings of said base member whereby contact lingers of said rst and second connecting members are 4
  • a base member made of an electrically insulating material and being formed with a plurality of spaced openings therein located between parallel planes; at least a first electrically conductive elongated connecting member arranged on said base member and extending in a first direction, said first connecting member having a plurality of spaced contact ngers arranged in pairs, each of said lpairs being located in one of said openings respectively; and at least a second electrically conductive elongated connecting member arranged Von said base member extending in a second direction ⁇ and cross-V located in one of said openings respectively whereby pairsV of contact vfingers of said first and second connecting members are located between said parallel planes in the same opening of said 'terminal board so that said iirst and second connecting members can be electrically connected to each other in said same opening 4.
  • a base member made of an electrically insulating material Vand being -forrned Vwithl a'plui'ality of openings therein, said openings being ,arranged in first parallel planes and located respectively in a different group of said plurality of openings arranged in said first direction; and a plurality of second electrically con- -ductive connecting members arranged on said base member spaced from each other, each of said second connecting members being electrically insulated from the others and crossing over each of said plurality of iirst connecting members without contacting the 'same and having linger-type portions extending between said parallel planes in the same direction as the finger-type portions of said first connecting members and located respectively in a different group of said plurality of openings arranged in said second direction whereby eac'h of Asaid first and second connecting members have portions extending between said parallel planes in the same opening of said terminal board so that each of said first and second connecting members have portions extending between said parallel planes in the same opening of said terminal board so that each of
  • a base member made of an electrically insulating material and being formed with a plurality of openings therein, said openings being arranged in first and second directions; a plurality of iirst electricallyl conductive planar connecting members arranged on said base member spaced Ifrom and substantially parallel to each other, each of said rst connecting members being electrically insulated from the others and having fingertype portions extending between parallel planes and located in a different group of said plurality of openings arranged in said first direction; and a plurality of second electrically conductive planar connecting members arranged on said base member spaced from and substantially parallel to each other, each of said second connecting members being electrically insulated from the others and crossing over each of said plurality of lirst connecting members without contacting the same and having finger-type portions extending between said parallel planes in the same direction as the finger-type portions of said iirst connecting members and located in a different group of said
  • a base member made of -an electrically insulating material and being formed with a plurality of openings therein located between parallel planes, said openings being arranged in first and second Vvdirections substantially transverse to each other; a plurality of iirst electrically conductive connecting members arranged on said base member spaced from eachother, each of said first connecting members being electrically insulated Yfrom the others and having linger-type portions extending between said parallel planes and located in a group of said plurality of openings rarranged in said first direction; and Va plurality ⁇ of second electrically conductive connecting members arranged on said base member spaced from each other, each of said second connecting members,
  • a base member made of an electrically insulating material and being formed with a plurality of openings therein, said openings being arranged in rst and second directions; a plurality of first electrically conductive connecting members arranged on said base member spaced from each other, each of said iirst connecting members being electrically insulated from the others and having finger-type portions extending between parallel planes and located respectively in a different group of said plurality ⁇ of openings arranged in said first direction; and a plurality of second electrically conductive connecting members arranged on said base member spaced from each other, each of said second connecting members being electrically insulated from the others and crossing over each of said plurality of lirst connecting members without contacting the same and having finger-type portions extending between said parallel planes in the same direction as the finger-type portions of said rst connecting members and vlocated respectively in a dierent group of said plurality of openings arranged
  • each of said portions includes a pair of nger-like connecting elements spaced from each other in the respective openings.
  • each of said portions includes a pair of vfinger-like connecting elements spaced from each other in the respective Openings.

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Software Systems (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Power Engineering (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
US650377A 1956-04-04 1957-04-03 Terminal board arrangement for selective interconnection Expired - Lifetime US2952828A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH341873X 1956-04-04

Publications (1)

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US2952828A true US2952828A (en) 1960-09-13

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US650377A Expired - Lifetime US2952828A (en) 1956-04-04 1957-04-03 Terminal board arrangement for selective interconnection

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Country Link
US (1) US2952828A (enrdf_load_stackoverflow)
BE (1) BE555606A (enrdf_load_stackoverflow)
CH (1) CH341873A (enrdf_load_stackoverflow)
DE (1) DE1048314B (enrdf_load_stackoverflow)
FR (1) FR1171053A (enrdf_load_stackoverflow)
GB (1) GB808601A (enrdf_load_stackoverflow)
NL (1) NL214475A (enrdf_load_stackoverflow)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3128332A (en) * 1960-03-30 1964-04-07 Hughes Aircraft Co Electrical interconnection grid and method of making same
US3129045A (en) * 1961-12-22 1964-04-14 Fred A Dexter Patch panel
US3166372A (en) * 1961-09-29 1965-01-19 Malco Mfg Company Inc Method and apparatus for connector orientation
US3246208A (en) * 1962-08-31 1966-04-12 Leeds & Northrup Co Programming pinboard
US4753610A (en) * 1986-05-19 1988-06-28 Telzon, Inc. Connectorized terminal block
US5456608A (en) * 1993-08-25 1995-10-10 Conx Corporation Cross-connect system
US5752216A (en) * 1994-07-06 1998-05-12 Dimensions International, Inc. Non-intrusive data interface system for air traffic control
US5812934A (en) * 1993-08-25 1998-09-22 Con-X Corporation Method and apparatus for a cross-connect system with automatic facility information transference to a remote location
US5882227A (en) * 1997-09-17 1999-03-16 Intercon Systems, Inc. Controlled impedance connector block
US6031349A (en) * 1993-08-25 2000-02-29 Con-X Corporation Cross-connect method and apparatus

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1103432B (de) 1957-05-04 1961-03-30 Karl Glaser Elektrischer Kreuzschienenverteiler
DE1246080B (de) 1959-03-17 1967-08-03 Sealectro Corp Kreuzschienenverteiler
US3072238A (en) * 1960-10-24 1963-01-08 Smith Corona Marchant Inc Program unit
DE1168522B (de) * 1962-04-16 1964-04-23 Otto Dunkel Kreuzschienenverteiler
DE2855431A1 (de) * 1978-12-21 1980-07-10 Siemens Ag Niedrigpoliger elektrischer stecker

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US231708A (en) * 1880-08-31 gilliland
US920614A (en) * 1908-02-27 1909-05-04 Western Electric Co Perforated block for electric conductors.
US1726745A (en) * 1927-04-13 1929-09-03 C D Wood Electric Co Inc Method of making plug receptacles and improved plug receptacle
GB593296A (en) * 1945-06-02 1947-10-14 Robert Spurgeon Wood Electrical distribution boards for obtaining different combination of electrical connections
US2467727A (en) * 1947-05-28 1949-04-19 Westinghouse Electric Corp Connection block for use with carrier-current line traps
US2483551A (en) * 1947-09-20 1949-10-04 Control Instr Co Inc Data transfer mechanism for tabulators and the like
DE818211C (de) * 1949-10-22 1951-10-22 Quante & Co Kom Ges Trennendverschluss
US2613287A (en) * 1948-10-27 1952-10-07 Ibm Cross connecting board
US2670530A (en) * 1954-03-02 Method for making terminal strips
GB750244A (en) * 1953-08-17 1956-06-13 Standard Telephones Cables Ltd Improvements in or relating to the mounting of electrical components

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US231708A (en) * 1880-08-31 gilliland
US2670530A (en) * 1954-03-02 Method for making terminal strips
US920614A (en) * 1908-02-27 1909-05-04 Western Electric Co Perforated block for electric conductors.
US1726745A (en) * 1927-04-13 1929-09-03 C D Wood Electric Co Inc Method of making plug receptacles and improved plug receptacle
GB593296A (en) * 1945-06-02 1947-10-14 Robert Spurgeon Wood Electrical distribution boards for obtaining different combination of electrical connections
US2467727A (en) * 1947-05-28 1949-04-19 Westinghouse Electric Corp Connection block for use with carrier-current line traps
US2483551A (en) * 1947-09-20 1949-10-04 Control Instr Co Inc Data transfer mechanism for tabulators and the like
US2613287A (en) * 1948-10-27 1952-10-07 Ibm Cross connecting board
DE818211C (de) * 1949-10-22 1951-10-22 Quante & Co Kom Ges Trennendverschluss
GB750244A (en) * 1953-08-17 1956-06-13 Standard Telephones Cables Ltd Improvements in or relating to the mounting of electrical components

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3128332A (en) * 1960-03-30 1964-04-07 Hughes Aircraft Co Electrical interconnection grid and method of making same
US3166372A (en) * 1961-09-29 1965-01-19 Malco Mfg Company Inc Method and apparatus for connector orientation
US3129045A (en) * 1961-12-22 1964-04-14 Fred A Dexter Patch panel
US3246208A (en) * 1962-08-31 1966-04-12 Leeds & Northrup Co Programming pinboard
US4753610A (en) * 1986-05-19 1988-06-28 Telzon, Inc. Connectorized terminal block
US5456608A (en) * 1993-08-25 1995-10-10 Conx Corporation Cross-connect system
US5812934A (en) * 1993-08-25 1998-09-22 Con-X Corporation Method and apparatus for a cross-connect system with automatic facility information transference to a remote location
US6031349A (en) * 1993-08-25 2000-02-29 Con-X Corporation Cross-connect method and apparatus
US6265842B1 (en) 1993-08-25 2001-07-24 Con-X Corporation Cross-connect method and apparatus
US5752216A (en) * 1994-07-06 1998-05-12 Dimensions International, Inc. Non-intrusive data interface system for air traffic control
US5882227A (en) * 1997-09-17 1999-03-16 Intercon Systems, Inc. Controlled impedance connector block

Also Published As

Publication number Publication date
GB808601A (en) 1959-02-04
NL214475A (enrdf_load_stackoverflow)
CH341873A (de) 1959-10-31
BE555606A (enrdf_load_stackoverflow)
DE1048314B (enrdf_load_stackoverflow)
FR1171053A (fr) 1959-01-22

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