BR6801635D0 - Maquina para formar vedacoes sucessivas transversais espacadas entre as camadas de uma tira de varias camadas num aparelho de embalagem ou outro - Google Patents

Maquina para formar vedacoes sucessivas transversais espacadas entre as camadas de uma tira de varias camadas num aparelho de embalagem ou outro

Info

Publication number
BR6801635D0
BR6801635D0 BR201635/68A BR20163568A BR6801635D0 BR 6801635 D0 BR6801635 D0 BR 6801635D0 BR 201635/68 A BR201635/68 A BR 201635/68A BR 20163568 A BR20163568 A BR 20163568A BR 6801635 D0 BR6801635 D0 BR 6801635D0
Authority
BR
Brazil
Prior art keywords
layers
appliance
packaging
strip
machine
Prior art date
Application number
BR201635/68A
Other languages
English (en)
Portuguese (pt)
Inventor
J Wylie
R Gussman
Original Assignee
Econ O Line Manufacturing Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Econ O Line Manufacturing Co filed Critical Econ O Line Manufacturing Co
Publication of BR6801635D0 publication Critical patent/BR6801635D0/pt

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/74—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area
    • B29C65/745—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using a single unit having both a severing tool and a welding tool
    • B29C65/7451—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using a single unit having both a severing tool and a welding tool the severing tool and the welding tool being movable with respect to one-another
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • B29C65/24—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools characterised by the means for heating the tool
    • B29C65/30—Electrical means
    • B29C65/305—Electrical means involving the use of cartridge heaters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B29C66/431—Joining the articles to themselves
    • B29C66/4312—Joining the articles to themselves for making flat seams in tubular or hollow articles, e.g. transversal seams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81427—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined comprising a single ridge, e.g. for making a weakening line; comprising a single tooth
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81431—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined comprising a single cavity, e.g. a groove
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/816—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the mounting of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8161—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the mounting of the pressing elements, e.g. of the welding jaws or clamps said pressing elements being supported or backed-up by springs or by resilient material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/82—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
    • B29C66/822—Transmission mechanisms
    • B29C66/8221—Scissor or lever mechanisms, i.e. involving a pivot point
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/834—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools moving with the parts to be joined
    • B29C66/8351—Jaws mounted on rollers, cylinders, drums, bands, belts or chains; Flying jaws
    • B29C66/83511—Jaws mounted on rollers, cylinders, drums, bands, belts or chains; Flying jaws jaws mounted on rollers, cylinders or drums
    • B29C66/83513—Jaws mounted on rollers, cylinders, drums, bands, belts or chains; Flying jaws jaws mounted on rollers, cylinders or drums cooperating jaws mounted on rollers, cylinders or drums and moving in a closed path
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/84—Specific machine types or machines suitable for specific applications
    • B29C66/849—Packaging machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B51/00—Devices for, or methods of, sealing or securing package folds or closures; Devices for gathering or twisting wrappers, or necks of bags
    • B65B51/10—Applying or generating heat or pressure or combinations thereof
    • B65B51/26—Devices specially adapted for producing transverse or longitudinal seams in webs or tubes
    • B65B51/30—Devices, e.g. jaws, for applying pressure and heat, e.g. for subdividing filled tubes
    • B65B51/306—Counter-rotating devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B9/00—Enclosing successive articles, or quantities of material, e.g. liquids or semiliquids, in flat, folded, or tubular webs of flexible sheet material; Subdividing filled flexible tubes to form packages
    • B65B9/10—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs
    • B65B9/20—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs the webs being formed into tubes in situ around the filling nozzles
    • B65B9/207—Enclosing successive articles, or quantities of material, in preformed tubular webs, or in webs formed into tubes around filling nozzles, e.g. extruded tubular webs the webs being formed into tubes in situ around the filling nozzles the web advancing continuously
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/914—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux
    • B29C66/9141—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature
    • B29C66/91431—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature the temperature being kept constant over time

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Package Closures (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
BR201635/68A 1967-08-21 1968-08-20 Maquina para formar vedacoes sucessivas transversais espacadas entre as camadas de uma tira de varias camadas num aparelho de embalagem ou outro BR6801635D0 (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US66185167A 1967-08-21 1967-08-21

Publications (1)

Publication Number Publication Date
BR6801635D0 true BR6801635D0 (pt) 1973-05-10

Family

ID=24655372

Family Applications (1)

Application Number Title Priority Date Filing Date
BR201635/68A BR6801635D0 (pt) 1967-08-21 1968-08-20 Maquina para formar vedacoes sucessivas transversais espacadas entre as camadas de uma tira de varias camadas num aparelho de embalagem ou outro

Country Status (7)

Country Link
US (1) US3522689A (enrdf_load_stackoverflow)
JP (1) JPS4844101B1 (enrdf_load_stackoverflow)
BR (1) BR6801635D0 (enrdf_load_stackoverflow)
CA (1) CA929094A (enrdf_load_stackoverflow)
DE (1) DE1786112A1 (enrdf_load_stackoverflow)
FR (1) FR1574629A (enrdf_load_stackoverflow)
GB (1) GB1239023A (enrdf_load_stackoverflow)

Families Citing this family (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH507786A (de) * 1969-05-06 1971-05-31 Sig Schweiz Industrieges Schneidvorrichtung mit rotierendem Zick-Zack-Messer
US3892060A (en) * 1970-03-30 1975-07-01 Kay Laboratories Inc Hot or cold pack and apparatus for and method of making same
US3629987A (en) * 1970-05-27 1971-12-28 Triangle Package Machinery Co Bag forming, filling and sealing machine
DE2224407C3 (de) * 1971-08-23 1981-09-17 Fmc Corp., San Jose, Calif. Vorrichtung zum Querschweißen und/oder Querschneiden von laufendem Bahnmaterial
US3793927A (en) * 1972-05-18 1974-02-26 A Emond Bag making machine
ZA739438B (en) * 1973-12-12 1975-03-26 T Hutt Method of making bags from synthetic plastic film and apparatus therefor
US3982374A (en) * 1974-07-01 1976-09-28 The Procter & Gamble Company Apparatus and method for continuously forming and filling tampon sacks
US4019306A (en) * 1974-12-27 1977-04-26 The Procter & Gamble Company Apparatus for forming tampon sacks and filling same with aggregate
DE2614990A1 (de) * 1976-04-07 1977-10-20 Bosch Gmbh Robert Vorrichtung zum quersiegeln und trennen eines einwickelschlauchs in einer kontinuierlich arbeitenden einwickelmaschine
IT1075215B (it) * 1976-12-02 1985-04-22 Buitoni Perugina Ind Ibp Apparecchio per la produzione di contenitori di imballaggio pressoche a parallele pipedo
SE436269B (sv) * 1981-02-17 1984-11-26 Halvard Ingemar Carlsson Forfarande och anordning for individuell forpackning av foremal
AU533511B1 (en) * 1982-09-04 1983-12-01 Owens-Illinois Plastic Products Inc. Producing a plastic sleeve
US4663917A (en) * 1984-06-20 1987-05-12 Taylor Alfred A Packaging apparatus
US4617781A (en) * 1984-12-12 1986-10-21 International Playtex, Inc. Polypropylene wrap end seals and process for making same
DE3545228A1 (de) * 1985-12-20 1987-07-02 Rovema Gmbh Verpackungsmaschine zum herstellen, fuellen und verschliessen von beuteln
JPS6382703U (enrdf_load_stackoverflow) * 1987-03-30 1988-05-31
DE3732033A1 (de) * 1987-09-23 1989-04-13 Rovema Gmbh Siegelvorrichtung
DE3837709A1 (de) * 1988-11-07 1990-05-10 Rovema Gmbh Schlauchbeutelmaschine
GB9314098D0 (en) * 1993-07-08 1993-08-18 Unilever Plc Apparatus and methods for producing packets
DE19803876A1 (de) * 1997-08-16 1999-02-18 Rovema Gmbh Vorrichtung zum Verschweißen eines Folienschlauches
US6138442A (en) * 1998-10-13 2000-10-31 Kliklok Corporation Packaging machine with continuous sealing jaw movement
JP4782373B2 (ja) * 2003-08-20 2011-09-28 大成ラミック株式会社 縦型充填包装装置及びその製袋方法
DE60316817T2 (de) * 2003-11-28 2008-07-10 Kpl Packaging S.P.A. Verpackungsmaschine für die Produktumwicklung in korrespondierenden Zuschnitten aus heisssiegelbarem Umwicklungsmaterial
US7730698B1 (en) * 2004-12-16 2010-06-08 Montano Louis M Split crimper for heat sealing packaging material
GB0608845D0 (en) * 2006-05-04 2006-06-14 Burgopak Ltd Uk Production of band-driven packages and their components
EP2151390B1 (en) * 2008-08-09 2015-09-30 Tetra Laval Holdings & Finance S.A. Packaging method and unit for producing sealed packages of a food product pourable into a tube of packaging material
US8087220B2 (en) * 2009-04-21 2012-01-03 Extreme Packaging Machinery, Inc. Film sealing and wrapping machine with rotary cut and seal jaw
GB2496645B (en) * 2011-11-17 2014-04-09 Frito Lay Trading Co Gmbh Packaging apparatus and method of making packages
CN103863625B (zh) * 2012-12-17 2016-01-27 广东远东食品包装机械有限公司 一种用于立式液体包装机的旋转封切整形装置及其控制方法
EP3028836B1 (de) * 2014-12-04 2017-11-01 Leister Technologies AG Schweißautomat zum Verbinden von überlappenden Materialbahnen
CN104760717B (zh) * 2015-03-23 2017-01-04 湖南工业大学 颗粒物料包装机
CN105416704B (zh) * 2015-11-24 2017-12-22 中山市众兴自动化科技有限公司 一种用于桶装水包装的新型热切封装置
CN109229607B (zh) * 2018-09-07 2020-07-17 安徽顺彤包装材料有限公司 一种食品包装袋的热封装置
WO2021058113A1 (de) * 2019-09-27 2021-04-01 Loesch Verpackungstechnik Gmbh Quersiegelvorrichtung für eine schlauchbeutelverpackungsmaschine

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US2966021A (en) * 1955-12-20 1960-12-27 Liqua Pak Inc Apparatus for forming, filling, sealing and severing containers
US2950588A (en) * 1958-12-24 1960-08-30 Hayssen Mfg Company Automatic packaging machines
US3163971A (en) * 1960-12-16 1965-01-05 Alpura Ag Method of sterile packing of sterile goods

Also Published As

Publication number Publication date
GB1239023A (enrdf_load_stackoverflow) 1971-07-14
FR1574629A (enrdf_load_stackoverflow) 1969-07-11
US3522689A (en) 1970-08-04
DE1786112A1 (de) 1971-11-18
JPS4844101B1 (enrdf_load_stackoverflow) 1973-12-22
CA929094A (en) 1973-06-26

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