US3463455A - Helical barbed tape unit - Google Patents

Helical barbed tape unit Download PDF

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Publication number
US3463455A
US3463455A US741603A US3463455DA US3463455A US 3463455 A US3463455 A US 3463455A US 741603 A US741603 A US 741603A US 3463455D A US3463455D A US 3463455DA US 3463455 A US3463455 A US 3463455A
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US
United States
Prior art keywords
tape
coils
barbs
coil
wire
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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
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US741603A
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English (en)
Inventor
Paul T Meckel
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.)
AMERICAN SECURITY FENCE Corp A CORP OF ARIZONA
Physics Technology Labs Inc
Original Assignee
Physics Technology Labs Inc
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Publication of US3463455A publication Critical patent/US3463455A/en
Assigned to CONNECTICUT BANK AND TRUST COMPANY, N.A., THE reassignment CONNECTICUT BANK AND TRUST COMPANY, N.A., THE SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: MAN BARRIER CORPORATION
Assigned to AMERICAN SECURITY FENCE CORPORATION A CORP OF ARIZONA reassignment AMERICAN SECURITY FENCE CORPORATION A CORP OF ARIZONA ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: MAN BARRIER CORPORATION
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H17/00—Fencing, e.g. fences, enclosures, corrals
    • E04H17/02—Wire fencing, e.g. made of wire mesh
    • E04H17/04—Wire fencing, e.g. made of wire mesh characterised by the use of specially adapted wire, e.g. barbed wire, wire mesh, toothed strip or the like; Coupling means therefor
    • E04H17/045—Barbed wire or toothed strip
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F25/00—Making barbed wire
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
    • F41H11/00—Defence installations; Defence devices
    • F41H11/08—Barbed-wire obstacles; Barricades; Stanchions; Tank traps; Vehicle-impeding devices; Caltrops

Definitions

  • Barbed tape is formed helically with coils of constant size and curved in the generally fiat plane of the tape, so that the tape will pack in a tangle free, compact axial stack with the coils in face to face contact.
  • the tape is self-supporting and the coils are helical rather than spiral. Spacer wires interconnecting the coils facilitate anchoring the extended barbed tape to the ground and a connecting wire along the upper portion of the coils prevents ready breaching of the obstruction by the usual flattening techniques.
  • a simple dispenser will hold a considerable quantity of tape for immediate deployment and multiple concentric coils can be dispensed simultaneously in interconnected arrangement to compound the obstruction.
  • the present invention relates to barriers and fences and specifically to a helical barbed tape unit.
  • barbed wire which is usually in the form of extended coils. Multiple coils are used to increase the height and width of a barrier, but most barbed wire barriers can be traversed by using planks, logs, or other such objects to flatten and bridge the coils. Conventional barbed wire is also diflicult to deploy rapidly due to entanglement of the barbs with adjacent coils. Prior use of generally flat barb structure has involved attachment thereof to a supporting Wire, and all known prior forms were stored in spiral rolls.
  • the barrier unit described herein has a helical coil of metal tape with a width several times its thickness and having spaced barbs along both edges. All coils are of equal diameter and are curved in the general plane of the tape, so that the collapsed coils seat face to face in a compact axial stack. The barbs are similarly spaced on each coil and nest in a tangle free arrangement, for rapid and uniform deployment.
  • a spacer wire linearly connecting the coils provides convenient means for anchoring the extended tape to the ground or suitable supports, and a connecting wire interconnects the coils opposite the spacer wire.
  • the connecting wire When a bridging object, such as a plank is thrown across the extended barrier, the connecting wire is depressed and pulls in the adjacent coils of tape to close the gap, thus making the usual breaching techniques ineffective.
  • the coils do not require any supporting wires and the spacer wires are clipped over the individual coils. The barbs are inclined to the plane of the tape.
  • the coiled tape fits into a simple dispenser which holds the stacked coils in place for easy extraction.
  • multiple concentric coils may be stored in a common dispenser and extracted simultaneously in interconnected arrangement.
  • the helical pitches of the concentric coils are in opposite directions.
  • FIGURE 1 is a view of a portion of barbed tape
  • FIGURE 2 is an edge view of the tape as taken from below FIGURE 1;
  • FIGURE 3 is an enlarged sectional view taken on line 3--3 of FIGURE 2;
  • FIGURE 4 is a similar sectional view showing an alternative tape cross section
  • FIGURE 5 is a sectional view showing the stacking of tape coils, a portion of a dispenser being shown in section;
  • FIGURE 6 is a diagrammatic view showing alternative coil shapes
  • FIGURE 7 is a sectional view of a single coil showing the attachment of a connecting wire
  • FIGURE 8 is a side elevation view of a portion of extended tape, the barbs being omitted for simplicity.
  • FIGURE 9 is a perspective view showing the extraction of concentric tapes from a dispenser.
  • the barbed tape is made from readily available metal strip, preferably steel, of flat configuration with a width considerably greater than its thickness and is stamped or otherwise cut to form the barbs integral with the basic tape.
  • the tape 10 has longitudinally spaced opposed pairs of sharply pointed barbs 12 along the two edges, each pair being spaced from the edge of the tape by a short root portion 14.
  • the barbs 12 extend generally longitudinal to the tape, and the individual barbs in each pair of barbs extend in opposite directions from the root portion 14.
  • the root portions 14 are transversely opposite each other in each group of pairs of barbs. In each group, the barbs in the opposite pairs on opposite edges of the tape are inclined in opposite directions from the plane of the tape as in FIGURE 2, for maximum effectiveness.
  • the tape 10 is curved in the plane of the tape to form coils of constant size, with the barbs correspondingly positioned on each coil.
  • the barbed tape resembles a coil spring with the plane of the flat tape in each coil perpendicular to the axis of the complete unit.
  • Each barb has a length dimension several times the width dimension of the root portion 14. This proportioning enabling, as a practical manufacturing operation, the formation of the illustrated relatively long, straight barbs inclined to the plane of the adjacent portion of the tape.
  • the barbs on the outside curved edge of the tape 10 are offset in opposite directions to the opposed pair on the inner edge of the tape.
  • each group of four barbs 12 has an X configuration when viewed from the edge, as in FIGURE 2, so providing barbs in both directions on both sides of the tape at any position.
  • the tape is described as flat, in actual use it is preferred to reinforce the tape by means of a small longitudinal bead or channel 16 pressed in the tape, as shown in FIGURE 3. This gives the tape resistance against deformation and gives the tape a tendency to spring back to its normal shape after being flattened or otherwise distorted.
  • the tape can be given a shallow V cross section to provide a reinforcing channel 18, as in FIGURE 4.
  • the tape is, however, completely self-supporting and requires no supporting wire as such.
  • the tape will have a constant arcuate curvature to form circular coils, a large barrier being built up by using several coiled tapes, as with conventional barbed wire.
  • the flat tape lends itself to the use of a preformed coil of flattened oval configuration, as as 20 in FIGURE 6, the coil 22 being indicated in broken line for comparison. With the oval coil a wide barrier can be built up with a minimum of barbed tape.
  • the tape coils can also be polygonal, as at 23 in FIGURE 6, depending on particular requirements.
  • a spacer wire 24 is connected between corresponding points on successive coils to limit their separation.
  • the spacer wire 24 may be secured to the coils by looping around as shown, or by spot welding, clips, or any other suitable means.
  • the tape would be deployed or extended with the spacer wire at the bottom, along the ground as in FIGURE 8, and would provide convenient means for anchoring the tape by stakes 25, or similar fasteners.
  • a single spacer wire is shown, but it will be obvious that multiple wires could be used, particularly with the oval coil 20.
  • the wire 24 is passed around the tape at each coil in a loop 26 and secured by a clip 27 to close the loop.
  • the clip may be of the type which is squeezed tightly in place by a plier-like tool, or by automatic machinery.
  • Effectiveness of the barrier is greatly increased by use of a connecting wire 28 attached to each coil and interconnecting the coils at the top, or opposite the spacer wire 24, with some slack between the coils. If a plank or similar object is thrown across the barrier, the connecting wire 28 will be depressed, causing the adjacent tape coils to be pulled together over the top of the plank and obstruct the passage. The slack in the connecting wire allows local displacement without distorting the entire coiled length. Additional connecting wires may be used if necessary and attached in the manner shown in FIGURE 7.
  • the dispenser 30, shown fragmentarily in FIG. 5, is a simple ring element having an endless and generally annular channel 32 which is a reasonably close fit for the stacked tape coils, the shape being determined to correspond with the polygonal or oval tape mentioned hereinabove when necessary, and the' tape being held very compactly and neatly for ease of extraction.
  • a readily removable cover 34 closes the channel 32 during storage and handling.
  • Various materials may be used for the dispenser 30, but since it will normally be expendable, it can be made from foam plastic, as indicated, or laminated paper, or any other such low cost material. With foam plastic it may be desirable to make the dispenser with a solid body of other than circular shape to withstand handling, and since weight will not be a particular problem.
  • FIGURE 9 To provide a dense barrier the arrangement shown in FIGURE 9 is particularly adaptable to the barbed tape.
  • Two coils of tape are used, the outer coil 36 being larger than the inner coil 38 and the helical pitch of the coils being in opposite direction.
  • the barbs are omitted for clarity, but both coils are of the configuration shown in FIGURE 1.
  • a spacer wire 40 connects the lower portions of coil 36, or may be extended, as indicated in broken line 42, to the inner coil also, so that proper spacing of both coils is provided.
  • the upper portions of the coils 36 and 38 are interconnected by a connecting wire 44, or several wires if required.
  • the dispenser 46 for the dual coils is a ring member with an endless outer channel 48 and an endless inner channel 50, co-axial and ordinarily generally annular to hold the coils 36 and 38, respectively, in co-axial relation.
  • the channels 48 and 50 correspond with the shape of the tapes to be housed therein. Grip portions 52 may be added to the dispenser for ease of handling.
  • a slot 54 connects the channels 48 and 50 to accommodate the folded connecting wire 44 between the coils and a further slot 56 at the opposite side contains the folded spacer wire 40.
  • the coils When extracted from the dispenser the coils will feed out smoothly into interconnected erected position, the opposed helical pitches providing a closely woven barrier. In use the inner coil 38 would probably rest on the ground, if there is sufficient slack in connecting wire 44.
  • While dimensions may vary, an example will serve to illustrate the typical characteristics of the barbed tape unit.
  • a unit as shown in FIG- URE 9 may be made up in a convenient size to provide an'erected barrier feet in length.
  • the stacked coils When collapsed the stacked coils will be less than 2 inches in thickness, allowing for the various wires and the barbs and, with a foam plastic dispenser the complete unit will weigh about 40 pounds, which is easily handled by one man.
  • the barbed tape can be deployed by various methods. With one end anchored the dispenser can be on a moving vehicle. Successive units can be connected by any suitable means to feed out in turn for long barricades.
  • a barbed tape unit comprising:
  • a length of substantially flat metal tape having longitudinally spaced barbs on at least one edge thereof; said tape being preformed in generally helical coils of constant size with the fiat plane of the tape substantially perpendicular to the axis of the helix, said tape, by virtue of being so preformed and as an article of merchandise, being collapsed into a compact axial stack with the coils in face to face relation.
  • each pair of said barbs has a root portion by which that pair of barbs is attached to and transversely spaced from the adjacent portion of the tape, the individual barbs in each pair extending in opposite directions and each barb having a length dimension several times the Width dimension of said root portion measured longitudinally of the tape.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Sheet Holders (AREA)
  • Packaging Of Annular Or Rod-Shaped Articles, Wearing Apparel, Cassettes, Or The Like (AREA)
  • Basic Packing Technique (AREA)
  • Fencing (AREA)
US741603A 1968-07-01 1968-07-01 Helical barbed tape unit Expired - Lifetime US3463455A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US74160368A 1968-07-01 1968-07-01

Publications (1)

Publication Number Publication Date
US3463455A true US3463455A (en) 1969-08-26

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Family Applications (1)

Application Number Title Priority Date Filing Date
US741603A Expired - Lifetime US3463455A (en) 1968-07-01 1968-07-01 Helical barbed tape unit

Country Status (6)

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US (1) US3463455A (xx)
CH (1) CH496613A (xx)
DE (1) DE1933030A1 (xx)
FR (1) FR2012041A1 (xx)
GB (1) GB1221178A (xx)
IL (1) IL32478A0 (xx)

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4040603A (en) * 1976-04-22 1977-08-09 Man Barrier Corporation Barbed metal tape
DE3014294A1 (de) * 1980-04-15 1981-10-22 Friedrich C. 4573 Löningen Graepel Stachelband
US4328955A (en) * 1980-03-10 1982-05-11 Hermans Albert L Defensive personnel barrier
US4484729A (en) * 1982-01-18 1984-11-27 Man Barrier Corporation Barrier coil dispenser
US4503423A (en) * 1982-01-18 1985-03-05 Man Barrier Corporation Extensible and retractable barrier and electromagnetic intrusion detector therefor
US4509726A (en) * 1983-10-17 1985-04-09 American Security Fence Company Barrier
US4571578A (en) * 1983-04-19 1986-02-18 The United States Of America As Represented By The Secretary Of The Air Force Intrusion barrier and detection apparatus
US4588988A (en) * 1984-06-06 1986-05-13 The United States Of America As Represented By The Secretary Of The Air Force Intrusion barrier and detection apparatus
US4666129A (en) * 1985-01-23 1987-05-19 American Fence Corporation Barrier
US4784373A (en) * 1986-06-20 1988-11-15 Mrm Security Systems, Inc. Barbed tape
US4818972A (en) * 1986-11-06 1989-04-04 Mrm Security Systems, Inc. Reinforced barbed tape including electrical sensor
US4833904A (en) * 1986-06-20 1989-05-30 Mrm Security Systems, Inc. Process for making barbed tape
US4844422A (en) * 1987-07-30 1989-07-04 American Fence Company, Inc. Barbed tape barrier
US4906975A (en) * 1988-11-18 1990-03-06 Mrm Security Systems, Inc. Vibration responsive intrusion detection barrier
US5074529A (en) * 1990-09-07 1991-12-24 Mrm Security Systems, Inc. Clip for forming a concertina configuration of helical barbed tape
US6601830B1 (en) 2000-08-18 2003-08-05 Michael V. Pavlov Barbed tape
US20060010677A1 (en) * 2004-07-19 2006-01-19 Pavlov Michael V System and methods for forming barbed tape product
US20060022185A1 (en) * 2004-07-19 2006-02-02 Pavlov Michael V Barbed tape product with a predetermined pattern of attachment points and attachment elements
US20060022184A1 (en) * 2004-07-19 2006-02-02 Pavlov Michael V Concertina tape products configured for stable deployment and retrieval
US7325787B1 (en) 2004-11-01 2008-02-05 Gibbs Edward L Barrier
US20090200415A1 (en) * 2008-02-10 2009-08-13 Ofir Pessach Concertina-wire barrier rapid deployment apparatus and method
US7661656B1 (en) * 2007-01-30 2010-02-16 Gibbs Edward L Barbed tape
US20130327666A1 (en) * 2011-01-04 2013-12-12 Lexgabinia Ug (Haftungsbeschrankt) Device for constructing a barrier made of barbed wire
US20150184983A1 (en) * 2012-05-09 2015-07-02 Qinetiq Limited Barbed Tape Stack and Apparatus for Deploying Barbed Tape Stack
US20160258183A1 (en) * 2013-10-23 2016-09-08 Mid-American Gunite, Inc. Dba Mid-American Group Wire barrier
US20170173920A1 (en) * 2015-08-06 2017-06-22 Hydra Heating Industries, LLC Magnetic insulation
US11447973B2 (en) * 2019-04-08 2022-09-20 Allied Tube & Conduit Corporation Portable razor wire rapid deployment unit

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11066845B2 (en) 2018-01-09 2021-07-20 Allied Tube & Conduit Corporation Razor wire barrier for access point security

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2349750A (en) * 1942-02-23 1944-05-23 American Steel & Wire Co Method and apparatus for forming wire entanglements
US2910256A (en) * 1957-08-30 1959-10-27 Leidolf Richard Accordion wire coils
US3010701A (en) * 1953-11-09 1961-11-28 Hans Berg Fencing strip
US3070946A (en) * 1959-06-03 1963-01-01 Keller & Knappich Gmbh Apparatus for making barbed wire barriers
US3155374A (en) * 1960-06-17 1964-11-03 Sieffert Georges Plain or barbed wire defense coil
US3224736A (en) * 1963-05-31 1965-12-21 Daniel D Musgrave Barbed strip

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2349750A (en) * 1942-02-23 1944-05-23 American Steel & Wire Co Method and apparatus for forming wire entanglements
US3010701A (en) * 1953-11-09 1961-11-28 Hans Berg Fencing strip
US2910256A (en) * 1957-08-30 1959-10-27 Leidolf Richard Accordion wire coils
US3070946A (en) * 1959-06-03 1963-01-01 Keller & Knappich Gmbh Apparatus for making barbed wire barriers
US3155374A (en) * 1960-06-17 1964-11-03 Sieffert Georges Plain or barbed wire defense coil
US3224736A (en) * 1963-05-31 1965-12-21 Daniel D Musgrave Barbed strip

Cited By (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4040603A (en) * 1976-04-22 1977-08-09 Man Barrier Corporation Barbed metal tape
US4328955A (en) * 1980-03-10 1982-05-11 Hermans Albert L Defensive personnel barrier
DE3014294A1 (de) * 1980-04-15 1981-10-22 Friedrich C. 4573 Löningen Graepel Stachelband
US4484729A (en) * 1982-01-18 1984-11-27 Man Barrier Corporation Barrier coil dispenser
US4503423A (en) * 1982-01-18 1985-03-05 Man Barrier Corporation Extensible and retractable barrier and electromagnetic intrusion detector therefor
US4571578A (en) * 1983-04-19 1986-02-18 The United States Of America As Represented By The Secretary Of The Air Force Intrusion barrier and detection apparatus
US4509726A (en) * 1983-10-17 1985-04-09 American Security Fence Company Barrier
US4588988A (en) * 1984-06-06 1986-05-13 The United States Of America As Represented By The Secretary Of The Air Force Intrusion barrier and detection apparatus
US4666129A (en) * 1985-01-23 1987-05-19 American Fence Corporation Barrier
US4784373A (en) * 1986-06-20 1988-11-15 Mrm Security Systems, Inc. Barbed tape
US4833904A (en) * 1986-06-20 1989-05-30 Mrm Security Systems, Inc. Process for making barbed tape
US4818972A (en) * 1986-11-06 1989-04-04 Mrm Security Systems, Inc. Reinforced barbed tape including electrical sensor
US4844422A (en) * 1987-07-30 1989-07-04 American Fence Company, Inc. Barbed tape barrier
US4906975A (en) * 1988-11-18 1990-03-06 Mrm Security Systems, Inc. Vibration responsive intrusion detection barrier
US4978943A (en) * 1988-11-18 1990-12-18 Mrm Security Systems, Inc. Method and apparatus for making a vibration-responsive intrusion detection barrier
US5074529A (en) * 1990-09-07 1991-12-24 Mrm Security Systems, Inc. Clip for forming a concertina configuration of helical barbed tape
US6601830B1 (en) 2000-08-18 2003-08-05 Michael V. Pavlov Barbed tape
US6926262B1 (en) 2000-08-18 2005-08-09 Michael V. Pavlov Barbed tape
US20060022184A1 (en) * 2004-07-19 2006-02-02 Pavlov Michael V Concertina tape products configured for stable deployment and retrieval
US7896317B2 (en) 2004-07-19 2011-03-01 Pavlov Michael V Concertina tape products configured for stable deployment and retrieval
US20060010677A1 (en) * 2004-07-19 2006-01-19 Pavlov Michael V System and methods for forming barbed tape product
US7290756B2 (en) 2004-07-19 2007-11-06 Pavlov Michael V Concertina tape products configured for stable deployment and retrieval
US20070267615A1 (en) * 2004-07-19 2007-11-22 Pavlov Michael V Concertina tape products configured for stable deployment and retrieval
US20080042002A1 (en) * 2004-07-19 2008-02-21 Pavlov Michael V System and methods for forming barbed tape product
US7353576B2 (en) 2004-07-19 2008-04-08 Pavlov Michael V Methods for forming barbed tape product
US7419139B2 (en) 2004-07-19 2008-09-02 Pavlov Michael V Barbed tape product with a predetermined pattern of attachment points and attachment elements
US7481444B1 (en) 2004-07-19 2009-01-27 Pavlov Michael V Concertina tape products configured for stable deployment and retrieval
US7549203B2 (en) 2004-07-19 2009-06-23 Pavlov Michael V System for forming barbed tape product
US20060022185A1 (en) * 2004-07-19 2006-02-02 Pavlov Michael V Barbed tape product with a predetermined pattern of attachment points and attachment elements
US7325787B1 (en) 2004-11-01 2008-02-05 Gibbs Edward L Barrier
US7661656B1 (en) * 2007-01-30 2010-02-16 Gibbs Edward L Barbed tape
US20090200415A1 (en) * 2008-02-10 2009-08-13 Ofir Pessach Concertina-wire barrier rapid deployment apparatus and method
US8197173B2 (en) * 2008-02-10 2012-06-12 Ofir Pessach Concertina-wire barrier rapid deployment apparatus and method
US20130327666A1 (en) * 2011-01-04 2013-12-12 Lexgabinia Ug (Haftungsbeschrankt) Device for constructing a barrier made of barbed wire
US20150184983A1 (en) * 2012-05-09 2015-07-02 Qinetiq Limited Barbed Tape Stack and Apparatus for Deploying Barbed Tape Stack
US20160258183A1 (en) * 2013-10-23 2016-09-08 Mid-American Gunite, Inc. Dba Mid-American Group Wire barrier
US10458146B2 (en) * 2013-10-23 2019-10-29 Mid-American Gunite, Inc. Wire barrier
US20170173920A1 (en) * 2015-08-06 2017-06-22 Hydra Heating Industries, LLC Magnetic insulation
US9914284B2 (en) * 2015-08-06 2018-03-13 Hydra Heating Industries, LLC Magnetic insulation
US11447973B2 (en) * 2019-04-08 2022-09-20 Allied Tube & Conduit Corporation Portable razor wire rapid deployment unit
US11781339B2 (en) 2019-04-08 2023-10-10 Allied Tube & Conduit Corporation Portable razor wire rapid deployment unit
US20240035302A1 (en) * 2019-04-08 2024-02-01 Allied Tube & Conduit Corporation Portable razor wire rapid deployment unit

Also Published As

Publication number Publication date
FR2012041A1 (xx) 1970-03-13
IL32478A0 (en) 1969-11-12
DE1933030A1 (de) 1970-02-26
CH496613A (fr) 1970-09-30
GB1221178A (en) 1971-02-03

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Owner name: CONNECTICUT BANK AND TRUST COMPANY, N.A., THE 100

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