DE2420402B2 - DEVICE FOR POSITIONING PATIENTS - Google Patents
DEVICE FOR POSITIONING PATIENTSInfo
- Publication number
- DE2420402B2 DE2420402B2 DE19742420402 DE2420402A DE2420402B2 DE 2420402 B2 DE2420402 B2 DE 2420402B2 DE 19742420402 DE19742420402 DE 19742420402 DE 2420402 A DE2420402 A DE 2420402A DE 2420402 B2 DE2420402 B2 DE 2420402B2
- Authority
- DE
- Germany
- Prior art keywords
- patient
- tubes
- sack
- substance
- lines
- 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.)
- Granted
Links
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C27/00—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas
- A47C27/14—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with foamed material inlays
- A47C27/142—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with foamed material inlays with projections, depressions or cavities
- A47C27/146—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with foamed material inlays with projections, depressions or cavities on the outside surface of the mattress or cushion
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C27/00—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas
- A47C27/14—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with foamed material inlays
- A47C27/148—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with foamed material inlays of different resilience
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/103—Detecting, measuring or recording devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
- A61B5/107—Measuring physical dimensions, e.g. size of the entire body or parts thereof
- A61B5/1077—Measuring of profiles
- A61B5/1078—Measuring of profiles by moulding
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
- A61B6/04—Positioning of patients; Tiltable beds or the like
- A61B6/0407—Supports, e.g. tables or beds, for the body or parts of the body
- A61B6/0421—Supports, e.g. tables or beds, for the body or parts of the body with immobilising means
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus for radiation diagnosis, e.g. combined with radiation therapy equipment
- A61B6/04—Positioning of patients; Tiltable beds or the like
- A61B6/0407—Supports, e.g. tables or beds, for the body or parts of the body
- A61B6/0442—Supports, e.g. tables or beds, for the body or parts of the body made of non-metallic materials
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G13/00—Operating tables; Auxiliary appliances therefor
- A61G13/10—Parts, details or accessories
- A61G13/12—Rests specially adapted therefor; Arrangements of patient-supporting surfaces
-
- 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
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
- B29C44/12—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements
- B29C44/1204—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements and giving the material during expanding the shape of a particular article to be supported, e.g. a human body-part
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G13/00—Operating tables; Auxiliary appliances therefor
- A61G13/10—Parts, details or accessories
- A61G13/12—Rests specially adapted therefor; Arrangements of patient-supporting surfaces
- A61G13/1205—Rests specially adapted therefor; Arrangements of patient-supporting surfaces for specific parts of the body
- A61G13/121—Head or neck
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G13/00—Operating tables; Auxiliary appliances therefor
- A61G13/10—Parts, details or accessories
- A61G13/12—Rests specially adapted therefor; Arrangements of patient-supporting surfaces
- A61G13/1205—Rests specially adapted therefor; Arrangements of patient-supporting surfaces for specific parts of the body
- A61G13/1225—Back
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G13/00—Operating tables; Auxiliary appliances therefor
- A61G13/10—Parts, details or accessories
- A61G13/12—Rests specially adapted therefor; Arrangements of patient-supporting surfaces
- A61G13/1205—Rests specially adapted therefor; Arrangements of patient-supporting surfaces for specific parts of the body
- A61G13/1235—Arms
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G13/00—Operating tables; Auxiliary appliances therefor
- A61G13/10—Parts, details or accessories
- A61G13/12—Rests specially adapted therefor; Arrangements of patient-supporting surfaces
- A61G13/1205—Rests specially adapted therefor; Arrangements of patient-supporting surfaces for specific parts of the body
- A61G13/1245—Knees, upper or lower legs
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G13/00—Operating tables; Auxiliary appliances therefor
- A61G13/10—Parts, details or accessories
- A61G13/12—Rests specially adapted therefor; Arrangements of patient-supporting surfaces
- A61G13/1205—Rests specially adapted therefor; Arrangements of patient-supporting surfaces for specific parts of the body
- A61G13/125—Ankles or feet
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G7/00—Beds specially adapted for nursing; Devices for lifting patients or disabled persons
- A61G7/05—Parts, details or accessories of beds
- A61G7/065—Rests specially adapted therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/753—Medical equipment; Accessories therefor
Description
4545
Bei der Behandlung des menschlichen Körpers, Insbesondere derjenigen mit Strahlung, beispielsweise mit der von einer Kobaltquelle ausgesandten oder ihnlichen Behandlungen, ist es notwendig, daß der Patient bei jeder Einzelbehandlung genau dieselbe Stellung bzw. Lage einnimmt.When treating the human body, especially those with radiation, for example with that emitted by a cobalt source or Similar treatments, it is necessary that the patient is exactly the same for each individual treatment Position or position.
Aufgabe der im Anspruch 1 angegebenen Erfindung ist es daher, eine Vorrichtung anzugeben, die in einfacher und zufriedenstellender Weise den Patienten In einer bestimmten Lage fixiert.The object of the invention specified in claim 1 is therefore to provide a device that is shown in easier and more satisfactory way to the patient Fixed in a certain position.
Bei der Verwendung der Vorrichtung steht der Körper des Patienten während der Bildung des Abdrucks in direktem Kontakt mit dem Kunststoffsack »der der Kunststoffhülle und stützt sich entweder mit <er Wirbelsäule oder irgendeinem anderen Körperteil In der für die Behandlung erwünschten Stellung auf dem (lachen Element aus dem relativ harten und steifen Material ab. 6SWhen using the device, the patient's body is in direct contact with the plastic bag of the plastic cover during the formation of the impression and is supported either with the spine or any other part of the body in the position desired for the treatment on the (laughing element the relatively hard and stiff material. 6 p
Vorteilhafte Weiterbildungen der Erfindung sind in icn UnteransprUchen beschrieben. Bei Ausgestaltung 4er Erfindung nach Anspruch 2 wird erreicht, daß das Material zunächst in e.nen unterhalb des Kopfes (1) lieeenden Bereich, dann unterhalb und oberhalb der linken und rechten Schulter (II) und schließlich unterhalb und neben den Armen (I I J) eindringtAdvantageous further developments of the invention are described in subclaims. When designing 4er invention according to claim 2 is achieved that the Material first in one below the head (1) lying area, then below and above the left and right shoulder (II) and finally penetrates below and next to the arms (I I J)
Ein Ausführungsbeispiel der Erfindung wird an Hand der F i g. 1 bis 5 erläutert. Es zeigtAn exemplary embodiment of the invention is illustrated with reference to FIGS. 1 to 5 explained. It shows
F i g 1 eine schematische Schnittansichi der wesentlichen Elemente der Vorrichtung vor Beginn der Ausbildung der Unterlage,FIG. 1 is a schematic sectional view of the essentials Elements of the device before the start of the formation of the base,
F i g. 2 eine ähnliche Ansicht nach der Beendigung der Bildung der Unterlage,F i g. 2 a similar view after completion of the formation of the base,
F i g 3 eine schematische Ansicht der zur Einfuhrung der schäumbaren Substanz verwendeten Vorrichtung.FIG. 3 is a schematic view of the introduction the device used for the foamable substance.
Fig.4 in schematischer Weise eine Draufsicht und den Ablauf der Verfahrensmaßnahmen zur Ausbildung der Abdruck-Unterlage und4 in a schematic manner a plan view and the sequence of the procedural measures for the formation of the print base and
Fig. 5 A und 5 B Schnitte längs der Linien V^-V3 und V/,-Vi,derFig.4. U11 Fig. 5 A and 5 B sections along the lines V ^ -V 3 and V /, - Vi, derFig.4. U 11
Wie aus den Fig. 1 und 2 zu ersehen ist, wird die Unterlage für den Patienten im wesentlichen aus zwei Hauptelementen gebildet, nämlichAs can be seen from FIGS. 1 and 2, the The support for the patient is essentially made up of two main elements, viz
1 einem Kunststoffsack oder einer Kunststoffhülle I, die eine Länge aufweist, die größer ist als die Körpergröße des Patienten und1 a plastic bag or a plastic cover I, which has a length which is greater than the height of the patient and
2. einem flachen Element 2 in Form einer Plane aus einem relativ harten und steifen Material, das in dem Sack enthalten ist und eine wesentlich geringere Länge aufweist als der Sack.2. a flat element 2 in the form of a tarpaulin made of a relatively hard and rigid material, which is in is contained in the sack and has a significantly shorter length than the sack.
Die Länge dieses flachen Elements 2 wird derart ausgewählt, daß dieses Element lediglich als Stütze für die Wirbelsäule des Patienten dient.The length of this flat element 2 is selected so that this element is only used as a support for the spine of the patient is used.
Die Verwendung dieser Vorrichtung besteht im wesentlichen darin, in das Innere des Sacks eine Substanz, wie Polyurethan, einzuführen, die aufschäumt und sich anschließend verfestigt.The use of this device consists essentially in the inside of the sack a Introduce a substance, such as polyurethane, which foams and then solidifies.
Während der Bildung des Abdrucks steht der Körper somit in direktem Kontakt mit dem Sack 1 und stützt sich über die Wirbelsäule auf dem Element 2 ab.During the formation of the impression, the body is thus in direct contact with the sack 1 and provides support down over the spine on element 2.
Zur Finführung der schäumbaren Substanz sind in dem Element 2 verschiedene, in Längsrichtung verlaufende Einspritzröhren 3, 4, 5 (vergleiche Fig.4) vorgesehen, die über den Rand des Elements hinausragen und dazu dienen, jeweils einen bestimmten Teil der Abdruck-Unterlage zu bilden.In order to guide the foamable substance there are 2 different longitudinally extending ones in the element Injection tubes 3, 4, 5 (compare Fig. 4) provided that protrude beyond the edge of the element and each serve a certain part of the Form imprint underlay.
Es können somit Röhren 3, 4, 5 vorgesehen sein, die überstehen (vgl. die Bezugsziffern 6 und 7), oder man kann mit Verbindungsstücken verbundene Leitungen vorsehen.It can thus be provided tubes 3, 4, 5, which protrude (see. The reference numerals 6 and 7), or one can provide lines connected with connectors.
In dem dargestellten Beispiel ist eine erste Leitung oder eine Röhre 3 vorgesehen, die sich in Längsrichtung des Elements 2 erstreckt und die dazu dient, das Formmaterial in den unterhalb des Kopfes gelegenen Bereich (I) des Sackes einzuführen (vergleiche F i g. 4).In the example shown, a first line or tube 3 is provided, which extends in the longitudinal direction of the element 2 and which serves to place the molding material in the areas below the head To introduce area (I) of the sack (compare FIG. 4).
Auf beiden Seiten der in Längsrichtung verlaufenden Röhre 3 sind zwei weitere Röhren 4 und 41 angeordnet, die mit der Röhre 3 den gleichen Winkel bilden, wobei diese Zwischenröhren unterhalb bzw. oberhalb der linken und rechten Schulter enden (vgl. die Bereiche Il der F i g. 4).On both sides of the longitudinal tube 3, two further tubes 4 and 4 1 are arranged, which form the same angle with the tube 3, these intermediate tubes ending below or above the left and right shoulder (cf. the areas II of the F i g. 4).
Schließlich dienen die eine größere Neigung als die Röhren 4 und 41 aufweisenden äußeren Röhren 5 und 5' dazu, das Material unterhalb und neben die Arme zu bringen (vgl. die Bereiche 111 der F i g. 4).Finally, the outer tubes 5 and 5 ', which have a greater inclination than the tubes 4 and 4 1 , serve to bring the material below and next to the arms (cf. areas 111 in FIG. 4).
Diese Röhren 5 und 51 können gegebenenfalls verkürzt sein, wie es in der F i g. 4 gestrichelt dargestellt ist (vgl. die Bezugsziffer 52), und teleskopartig ausgelegt sein, so daß eine Anpassung an die Körpergröße des Patienten möglich wird.These tubes 5 and 5 1 can optionally be shortened, as shown in FIG. 4 is shown in dashed lines (see. The reference number 5 2 ), and designed telescopic, so that an adaptation to the body size of the patient is possible.
Alle diese Röhren ragen mit beiden Enden über, um einerseits das Einführen des Materials zu ermöglichen and andererseits die Verteilung der Substanz in dem gewünschten Bereich zu bewirken.All of these tubes protrude at both ends in order to enable the material to be introduced on the one hand and on the other hand to effect the distribution of the substance in the desired area.
Die Anwendung dieser getrennten Röhren oder leitungen ist notwendig, da der sich bildende Schaum jeweils eine bereits verwendete Leitung verstopft.The use of these separate pipes or lines is necessary because of the foam that forms a line that has already been used is blocked.
Das Formmaterial wird zunächst über die Leitung ©der Röhre 3 und schließlich nacheinander über die Leitungen oder Röhren 4 und 41 und schließlich die Leitungen 5 und 51 eingeführt.The molding material is first introduced via the line © of the tube 3 and finally successively via the lines or tubes 4 and 4 1 and finally the lines 5 and 5 1 .
Wenn dieses Stadium erreicht ist, ist der Sack vollständig entfaltet, wonach die abschließende Einführung des Materials direkt seitlich und unterhalb der Beine erfolgt, bis der Sack vollständig gefüllt ist. Dann wird die zur Einführung des Materials vorgesehene öffnung 1' des Sackes verschlossen.When this stage is reached, the sack is fully unfolded, followed by the final introduction of the material is carried out directly to the side and below the legs until the sack is completely filled. then the opening 1 'of the sack provided for introducing the material is closed.
In der F i g. 5 A ist eine Schnittansicht der gesamten Anordnung vor Beginn der Einführung der Formsubstanz dargestellt, d. h. die Kunststoffhülle, das darin vorhandene, mit den Leitungen oder Röhren 3 bis 5 versehene plattenförmige Element und der Körper 16 des Patienten.In FIG. 5A is a sectional view of the entire Arrangement shown before the start of the introduction of the molding substance, d. H. the plastic cover that's inside existing plate-shaped element provided with the lines or tubes 3 to 5 and the body 16 of the patient.
In der F i g. 5B ist die gleiche Schnittansichi nach der Einführung der Formsubstanz über die öffnung 7 gezeigt.In FIG. Figure 5B is the same sectional view of Figure 5B Introduction of the molding substance via the opening 7 is shown.
Diese Substanz 14 ist ebenfalls in der F i g. 2This substance 14 is also shown in FIG. 2
dargestellt, wobei zu erkennen ist, daß in dieser Weise ein Formstück gebildet wird, das vollständig der Fcrm des Körpers angepaßt ist, gleichgültig welche Lage die Glieder des Patienten einnehmen.shown, it can be seen that in this way a molding is formed that completely the Fcrm of the body is adapted, regardless of the position of the limbs of the patient.
Die Einführung des Materials erfolgt in der Weise, wie es in der F i g. 3 dargestellt ist. mit Hilfe einer Pistole 8, die mit einer Röhre 81 ausgerüstet ist, die in jede Röhre oder Leitung 3,4 oder 5 eingeführt werden kann, ίο und welche mit Zuführungsleitungen 9, 10 und 11 versehen ist. über die Druckluft (aus dem Behälter 12) und die Bestandteile des Materials (aus den Behältern 13 und 15) zugeführt werden.The material is introduced in the manner shown in FIG. 3 is shown. with the aid of a pistol 8 which is equipped with a tube 8 1 which can be inserted into any tube or line 3, 4 or 5, ίο and which is provided with supply lines 9, 10 and 11. via the compressed air (from the container 12) and the components of the material (from the containers 13 and 15).
Als Bestandteile kann man die folgenden Materialien einsetzen:The following materials can be used as components:
a) Ein mit Trichlorfluormethan (Freon) versetztes Harz (das in dem Behälter 13 enthalten ist) unda) A trichlorofluoromethane (Freon) added resin (contained in the container 13) and
b) ein Isocyanat (welches sich in dem Behälter 15 befindet) oderb) an isocyanate (which is located in the container 15) or
a) ein Harz unda) a resin and
b) ein mit Trichlorfluormethan (Freon) versetztes Isocyanat.b) an isocyanate mixed with trichlorofluoromethane (Freon).
Das Element 2 kann aus einem harten Polyurethanschaum mit hoher Dichte (etwa 140 kg/m3) bestehen und eine Breite von 20 cm, eine Länge von 75 cm und eine Dicke von 25 mm aufweisen.The element 2 can consist of a hard polyurethane foam with high density (about 140 kg / m 3 ) and have a width of 20 cm, a length of 75 cm and a thickness of 25 mm.
Hierzu 2 Blatt ZeichnungenFor this purpose 2 sheets of drawings
Claims (6)
ein flaches längliches plattenförmiges, in Längs- >° richtung zentral innerhalb des Sackes angeordnetes Element (2) aus einem relativ harten und steifen Material,a plastic bag (1) that is longer and wider than the patient's body,
a flat elongated plate-shaped element (2) arranged in the longitudinal> ° direction centrally within the sack made of a relatively hard and rigid material,
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BE130481 | 1973-04-27 | ||
BE130481A BE798803A (en) | 1973-04-27 | 1973-04-27 | METHOD AND INSTALLATION FOR CARRYING OUT A SUPPORT OF A PATIENT |
Publications (3)
Publication Number | Publication Date |
---|---|
DE2420402A1 DE2420402A1 (en) | 1974-11-14 |
DE2420402B2 true DE2420402B2 (en) | 1976-05-13 |
DE2420402C3 DE2420402C3 (en) | 1976-12-30 |
Family
ID=
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19706554A1 (en) * | 1997-02-19 | 1998-04-30 | Siemens Ag | Diagnostic couch for human or animal form undergoing examination |
DE102005009619A1 (en) * | 2004-03-05 | 2005-11-17 | Ralf Becker | Portable frame stretcher for supporting and immobilizing, is spread out around seriously-wounded individual, filling intervening space with foam |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19706554A1 (en) * | 1997-02-19 | 1998-04-30 | Siemens Ag | Diagnostic couch for human or animal form undergoing examination |
DE102005009619A1 (en) * | 2004-03-05 | 2005-11-17 | Ralf Becker | Portable frame stretcher for supporting and immobilizing, is spread out around seriously-wounded individual, filling intervening space with foam |
Also Published As
Publication number | Publication date |
---|---|
NL153770B (en) | 1977-07-15 |
FR2226981A1 (en) | 1974-11-22 |
DE2420402A1 (en) | 1974-11-14 |
NL7309246A (en) | 1974-10-29 |
BE798803A (en) | 1973-08-16 |
FR2226981B1 (en) | 1978-01-20 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C3 | Grant after two publication steps (3rd publication) | ||
E77 | Valid patent as to the heymanns-index 1977 | ||
EHJ | Ceased/non-payment of the annual fee |