US3871036A - Invalid transfer device - Google Patents

Invalid transfer device Download PDF

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Publication number
US3871036A
US3871036A US377008A US37700873A US3871036A US 3871036 A US3871036 A US 3871036A US 377008 A US377008 A US 377008A US 37700873 A US37700873 A US 37700873A US 3871036 A US3871036 A US 3871036A
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US
United States
Prior art keywords
belt
reel
take
transfer device
patient
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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
Application number
US377008A
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English (en)
Inventor
David J Attenburrow
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Reed International Ltd
Original Assignee
Reed International Ltd
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Publication date
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Publication of US3871036A publication Critical patent/US3871036A/en
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61GTRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G7/00Beds specially adapted for nursing; Devices for lifting patients or disabled persons
    • A61G7/10Devices for lifting patients or disabled persons, e.g. special adaptations of hoists thereto
    • A61G7/1025Lateral movement of patients, e.g. horizontal transfer
    • A61G7/1032Endless belts
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61GTRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G2200/00Information related to the kind of patient or his position
    • A61G2200/30Specific positions of the patient
    • A61G2200/32Specific positions of the patient lying

Definitions

  • ABSTRACT A patient transfer device comprises a belt connected at its ends to first and second take-up and let-out reels and in its extension from the first reel to the second reel passes over supporting and guiding means to define in turn an upper patient supporting portion and a lower ground engaging portion.
  • Driving means are provided for selectively rotating each of said reels to provide two modes of operation, the course of the belt over the supporting and guiding means being such that in each of the two modes the belt is moving in the same direction relative to the ground over its upper patient supporting portion and its lower ground engaging portion.
  • An auxiliary belt take up and let-out device is connected to the belt at a position between its upper patient supporting portion and its lower ground engaging portion, and can be selectively locked to enable the two modes of operation to be performed.
  • Actuating means are provided for said auxiliary device and locking-means for locking said first reel so that third and fourth modes of operation are provided in which the belt movement is between the auxiliary device and the second reel so that the transfer device can track along with a patient on it.
  • This invention relates to a transfer device for transferring. a hospital patient between a bed, chair, operating table, x-ray table or the like and a trolley or the like.
  • the object of the invention is to provide a mechanical orderly which enables transfer of a patient to and from a trolley or the like using less manpower than hitherto and with the minimum disturbance to the patient.
  • a patient transfer device comprises a belt connected at its ends to first and second take-up and let-out reels and in its extension from the first reel to the second reel passing over supporting and guiding means to define in turn an upper patient supporting portion and a lower ground engaging portion, driving means for selectively rotating each of said reels so that in a first mode of operation of the transfer device with said first reel driven the belt is taken-up by the first reel and let out by the second reel, in a second mode of operation the belt is taken up by the second reel and let out by the first reel, the course of the belt over the supporting and guiding means being such that in each of the first and second modes the belt is moving in the same.
  • an auxiliary belt take up and let-out device connected to the belt at a position between its upper patient supporting portion and its lower ground engaging portion, means for selectively locking the auxiliary device to enable the first and second modes of operation to be performed, means for selectively actuating said auxiliary device and means for locking said first reel so that in a third mode of operation with said auxiliary device actuated the belt is taken up by the auxiliary device and let out by the second reel and in a fourth mode of operation in which said second reel is rotated by said driving means the belt is taken up by the second reel and let out by the auxiliary device.
  • ground any surface on which the transfer device operates, for example the top ofa trolley, a bed mattress or the surface of an operating or x-ray table.
  • the transfer device will track forward by movement of its ground engaging portion to load a patient on to it and simultaneous movement of the upper patient supporting portion will ensure that there is substantially no relative longitudinal movement between it and the patient and hence minimum disturbance to the patient.
  • the second mode of operation enables in a similar manner unloading of the patient by rearward tracking of the device.
  • the third and fourth modes of operation enable forward and rearward tracking of the transfer device with no movement of the upper patient supporting portion of the belt so that the transfer device can move to and from the trolley or the like on to another surface with the patient supported on it.
  • the belt supporting and guiding means may be arranged so that the upper patient supporting portion forms a gentle, preferably convexly curved, ramp leading substantially below the ground engaging level of the transfer device at its forward extremity; the extent of the movement of the forward end below ground engaging level may be controlled for example by hinging the supporting and guiding means at the forward end.
  • the forward end having completed the lead under the patient when loading in the manner described above may also be arranged that the upper patient supporting portion of the belt supporting and guiding means at the forward end lifts above the ground engaging level of the transfer device, thus providing a contour corresponding of a mattressed bed, such upward lift of the forward end being limited for example by the design of the aforesaid hinging.
  • the belt supporting and guiding means may comprise a combination of plates and rollers, the belt skidding over the surfaces of the plates.
  • FIG. 1 is a perspective view of the transfer device shown mounted on a trolley.
  • FIG. 2 is a perspective view of the forward end of the device from above
  • FIG. 3 is a perspective view of the forward end of the device from below
  • FIGS. 4 to 6 are diagrammatic views showing the course of the belt and illustrating the different modes of operation of the transfer device.
  • FIG. 7 illustrates diagrammatically the driving arrangement for the transfer device.
  • the transfer device has a belt 1 located between side frame structures 2 and at its rear end has a housing 3.
  • the housing 3 encloses belt take-up and let-out reels 4 and 5 and auxiliary take-up and let-out reel 14 (FIGS. 4 to 6). It also encloses driving means including an 7 electric motor, and associated clutches and locking means for reels 4 and 5 and 14 as will be described. It encloses electric control means (not shown) which, controlled by switch unit 25, causes the transfer device to perform a selected mode of operation as will be described.
  • the hand held switch unit 7 is an on-off control device for the driving motor so that whilst performing any mode of operation the transfer device can be started and stopped as desired.
  • the belt extends from the reels 4 and 5 and passes over guide rollers only some of which referenced 8, 9, 22 and 23 are shown. Other guide rollers are positioned to provide the appropriate support for the run of the belt so that it follows the course shown.
  • the belt defines an upper patient supporting portion 10 and a lower ground engaging portion 11.
  • Behind the belt 1 over the portions 10 and 11 are positioned supporting plates shown diagrammatically at 31 and 32 in FIG. 4, a part of the plate 31 being shown in FIG. 2 and a part of the plate 32 being shown in FIG. 3.
  • These plates are attached at their edges to the side frame structure 2 and provide substantially flat surfaces over which the belt skids or slides.
  • the front end of the side frames 2 together with the associated parts of the support plates 31 and 32 form a nose portion 24 (see FIG. 2) which is hinged at 33 so that it can move up and down relative to the remainder of the transfer device.
  • the auxiliary take-up and release device 6 comprises a belt 12 connected at one end to an anchorage 13 and at its other end to a reel 14. Between the anchorage l3 and reel 14 the belt 12 passes over a floating roller 15 which is tied to the idler roller 8.
  • FIG. 7 shows diagrammatically the drive arrangement for the reels 4, and 14.
  • the drive is from a single electric motor 40 which through a gear box 41 and respective electromagnetically actuated clutches 42, 43 and 44 connects with the reels 4, 5 and 14.
  • the drive for the reel 4 is through shaft 45 and clutch 42 to sprocket wheel 46 and thence through an endless driving chain 47 which passes around sprocket 48 at the end of reel 4 and around sprocket 49 with which is associated an electromgantically operated brake 50.
  • the drive for reel 5 is through shaft 51, chain drive 52, shaft 53, clutch 43 and then chain drive 54 to the sprocket 56 of reel 5.
  • the drive for reel 14 is similarly to the reel 4 is through shaft 51, clutch 44 to sprocket wheel 61.
  • an endless chain 57 extends around sprocket 58 of the reel 14 and a sprocket 59 with which is associated an electromagnetically operated brake 60.
  • the brakes In their de-energised state the brakes are engaged and the clutches disengaged as a fail-safe precaution.
  • the electrical control system for selecting the mode of operation of the transfer device by selectively operating predetermined clutches and brakes can for example comprise relay circuits which are selectively operated in accordance with the required logic.
  • the required circuit design will be readily apparent to persons reasonably skilled in relay circuitry from the following described modes of operation.
  • the initial position of the belt is'as shown in FIG. 4 with the transfer device supported on trolley 16 as shown in FIG. 1.
  • the trolley is moved so that it is end on to the head or foot of a divan type bed or diagonal to the bed. In the case of a bed with ends which can not be removed the trolley must be moved to a position diagonal to the bed. If necessary the trolley is adjusted in height so that the centre line of roller 22 is level with the bed mattress surface.
  • the reel 4 With the reel 14 locked, i.e., with brake 60 engaged, and brake 50 disengaged and with clutch 42 engaged and clutches 43 and 44 disengaged, the reel 4 is driven anti-clockwise to take up the belt 1 so that over its portions and 11 it moves in the direction of the arrows 17.
  • the forward end 18 of the transfer device tracks under the patient and since the belt portions 10 and 11 are moving at the same speed the patient will be loaded onto the transfer device without relative movement between the patient and the bed.
  • the nose portion of transfer 1 device is allowed to freely move up or down independently of the remainder of the transfer device by virtue of the hinge 33, thus ensuring that rollers 22 and 23 at the forward extremity will follow the contours in the surface of the mattress caused by the unevenly distributed weight of the patient on the mattress.
  • the patient supporting portion of the belt defines a gentle conversely curved ramp 21 leading substantially down to ground level at its forward extremity. This is achieved by the positions of the guide roller 22 supporting the forward end of the patient supporting portion 10 of the belt 1 in front of and at the same horizontal level as the roller 23 supporting the ground engaging portion 11 of the belt 1 and the curving of the supporting plate 32 over the nose portion.
  • the forward end of the patient supporting portion of the belt i.e., the leading end of the nose portion will be depressed into the bed mattress and thus will cause a separation of the bed mattress and the patients clothing to facilitate the passage of the transfer device underneath the patients clothing.
  • the side structures 2 over the nose portion are shaped to define ploughs 24 which prevent entanglement of the two sides of the transfer device at the forward extremity with the bed sheet on the mattress or the patients clothing in both directions of movement of the transfer device.
  • a stationary bar 30 situated between rollers 22 and 23 prevents entanglement of clothing when the transfer device is removed from under the patient.
  • Housing 3 for belt take up reels also incorporates an arrangement oflimit switches to override the hand control switch 7.
  • the track length of the belt during operations 4 to 6 is less than when transferring a patient from bed to operating table or x-ray table. It is therefore necessary to ensure that the belt position is correct, as described in FIG. 4 before commencing the operation of lifting a patient.
  • a reset device (not shown) which is also incorporated in housing 3. This device draws up or releases the belt by movement of each reel simultaneously to achieve the position as indicated by FIG. 4.
  • the lifting device referred to is positioned at a point of balance to ensure that the reset device cannot be energised if the patient is lying on the upper portion of belt 1.
  • a patient transfer device comprising in combination a. an elongated belt which is wide enough to support a patient,
  • said belt being disposed around said plurality of supporting and guiding means in a back and forth manner so as to provide an upper patient supporting portion and a lower ground engaging portion
  • first locking means for selectively locking said third take-up and let-out device
  • second locking means for selectively locking said first take-up and let-out reel, whereby:
  • a transfer device as set forth in claim 1 wherein side frames between which the belt extends transversely are provided at their forward end with ploughs which extend below the adjacent ground engaging portion of belt.

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  • Health & Medical Sciences (AREA)
  • Nursing (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Invalid Beds And Related Equipment (AREA)
US377008A 1972-07-10 1973-07-06 Invalid transfer device Expired - Lifetime US3871036A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB3214872A GB1415683A (en) 1972-07-10 1972-07-10 Transfer device
LU68526 1973-09-27
NL7313794A NL7313794A (en) 1972-07-10 1973-10-08 Patient transfer mechanism - has supporting belt winding and unwinding between rolls drivable in opposite directions

Publications (1)

Publication Number Publication Date
US3871036A true US3871036A (en) 1975-03-18

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ID=40010680

Family Applications (1)

Application Number Title Priority Date Filing Date
US377008A Expired - Lifetime US3871036A (en) 1972-07-10 1973-07-06 Invalid transfer device

Country Status (12)

Country Link
US (1) US3871036A (ja)
JP (1) JPS5624535B2 (ja)
AU (1) AU467530B2 (ja)
BE (1) BE805775A (ja)
CA (1) CA974002A (ja)
DE (1) DE2334644A1 (ja)
FR (1) FR2191872B3 (ja)
GB (1) GB1415683A (ja)
LU (1) LU68526A1 (ja)
NL (1) NL7313794A (ja)
SE (1) SE380973B (ja)
ZA (1) ZA734600B (ja)

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3990122A (en) * 1975-12-03 1976-11-09 Lawrence Peska Associates, Inc. Patient lift
US4073016A (en) * 1976-06-17 1978-02-14 Mobilizer Medical Products, Inc. Transfer mechanism
US4077073A (en) * 1976-06-17 1978-03-07 Mobilizer Medical Products, Inc. Separator assembly for transfer mechanisms
US4087873A (en) * 1975-12-27 1978-05-09 Hiroshi Ohkawa Apparatus for moving objects
US4156946A (en) * 1977-06-10 1979-06-05 Reed International Limited Transfer device
US6698041B2 (en) * 2000-03-31 2004-03-02 The Or Group, Inc. Patient transfer apparatus
US6857143B2 (en) 2002-06-10 2005-02-22 Mcnulty Christopher Body transfer system
US20070079438A1 (en) * 2005-10-07 2007-04-12 Patterson Richard A Patient lift and transfer device
US20080289101A1 (en) * 2005-10-07 2008-11-27 Patterson Richard A Table and slide assemblies for patient transfer device
US20090056012A1 (en) * 2007-08-30 2009-03-05 Kdr, Llc Patient transfer mechanism and gurney equipped therewith
US20100242169A1 (en) * 2009-03-27 2010-09-30 Astir Technologies, Llc Body transfer system with yaw control
US20110067177A1 (en) * 2005-10-07 2011-03-24 Patterson Richard A Table assembly for patient transfer device
WO2011156753A1 (en) * 2010-06-10 2011-12-15 Patterson Richard A Lift chair
US20120291196A1 (en) * 2011-05-18 2012-11-22 Vishweswar Reddy Konda Transfer Belt Mechanism associated with patient transfer gurney system
US9101521B2 (en) 2012-04-16 2015-08-11 Cega Innovations, Llc Systems, methods and transfer sheets for transferring patients
US9107788B2 (en) 2005-10-07 2015-08-18 MediGlider Corp. Cam mechanism to raise steering wheel of patient transfer device
US9114050B2 (en) 2012-04-16 2015-08-25 Cega Innovations, Llc Systems and methods for transferring patients
US9427367B2 (en) 2012-04-16 2016-08-30 Cega Innovations, Llc System and method for transferring patients
US20170027795A1 (en) * 2015-07-24 2017-02-02 Farshid Asil System and methods for safe lifting of patients from hospital beds
US9655800B1 (en) 2016-09-16 2017-05-23 Salvus Transportare, LLC Support apparatus with double roller assembly
WO2023235720A1 (en) * 2022-05-31 2023-12-07 Seneca Devices, Inc. Methods and devices for repositioning a patient on a support apparatus

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3947902A (en) * 1975-03-17 1976-04-06 Mobilizer Medical Products, Inc. Apron and drive mechanism for object transferring apparatus
ES2017302A6 (es) * 1989-11-02 1991-01-16 Gali Int Instalacion para estampacion de piezas de tejido.
GB2423291B (en) * 2005-02-22 2008-04-09 Leec Ltd A transfer apparatus

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3551002A (en) * 1969-05-21 1970-12-29 Gen Motors Corp Restraint belt retractor biasing release
US3579672A (en) * 1970-02-05 1971-05-25 Diamondhead Properties Inc Method and apparatus for moving objects
US3654644A (en) * 1969-10-27 1972-04-11 Stero Nv Stretcher
US3760435A (en) * 1970-03-02 1973-09-25 Philips Corp Stretchers
US3765037A (en) * 1972-04-05 1973-10-16 Diamondhead Corp Apparatus for transferring objects

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3551002A (en) * 1969-05-21 1970-12-29 Gen Motors Corp Restraint belt retractor biasing release
US3654644A (en) * 1969-10-27 1972-04-11 Stero Nv Stretcher
US3579672A (en) * 1970-02-05 1971-05-25 Diamondhead Properties Inc Method and apparatus for moving objects
US3760435A (en) * 1970-03-02 1973-09-25 Philips Corp Stretchers
US3765037A (en) * 1972-04-05 1973-10-16 Diamondhead Corp Apparatus for transferring objects

Cited By (46)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3990122A (en) * 1975-12-03 1976-11-09 Lawrence Peska Associates, Inc. Patient lift
US4087873A (en) * 1975-12-27 1978-05-09 Hiroshi Ohkawa Apparatus for moving objects
US4073016A (en) * 1976-06-17 1978-02-14 Mobilizer Medical Products, Inc. Transfer mechanism
US4077073A (en) * 1976-06-17 1978-03-07 Mobilizer Medical Products, Inc. Separator assembly for transfer mechanisms
US4156946A (en) * 1977-06-10 1979-06-05 Reed International Limited Transfer device
US6698041B2 (en) * 2000-03-31 2004-03-02 The Or Group, Inc. Patient transfer apparatus
US20090094742A1 (en) * 2002-06-10 2009-04-16 Mcnulty Christopher Body transfer system and method
US6857143B2 (en) 2002-06-10 2005-02-22 Mcnulty Christopher Body transfer system
US20070074343A1 (en) * 2002-06-10 2007-04-05 Astir Technologies, Llc Body Transfer System and Support Pads
US7748062B2 (en) 2002-06-10 2010-07-06 Astir Technologies, Llc Body transfer system and method
US7552493B2 (en) 2002-06-10 2009-06-30 Astir Technologies, Llc Body transfer system and support pads
US8214944B2 (en) 2005-10-07 2012-07-10 Conmedisys, Inc. Patient lift and transfer device
US9186287B2 (en) 2005-10-07 2015-11-17 MediGlider Corp. Table and slide assemblies for patient transfer device
US7603729B2 (en) 2005-10-07 2009-10-20 Conmedisys, Inc. Patient lift and transfer device
US20080289101A1 (en) * 2005-10-07 2008-11-27 Patterson Richard A Table and slide assemblies for patient transfer device
US9730849B2 (en) 2005-10-07 2017-08-15 MediGlider Corp. Patient lift and transfer device
US20110067177A1 (en) * 2005-10-07 2011-03-24 Patterson Richard A Table assembly for patient transfer device
US9107788B2 (en) 2005-10-07 2015-08-18 MediGlider Corp. Cam mechanism to raise steering wheel of patient transfer device
US7975329B2 (en) 2005-10-07 2011-07-12 ConMediSys, Inc Patient lift and transfer device
US8869322B1 (en) 2005-10-07 2014-10-28 Mediglider Corporation Table and slide assemblies for patient transfer device
US8096004B2 (en) 2005-10-07 2012-01-17 Conmedisys, Inc. Patient lift and transfer device
US8112833B2 (en) 2005-10-07 2012-02-14 Conmedisys, Inc. Table assembly for patient transfer device
US20070079438A1 (en) * 2005-10-07 2007-04-12 Patterson Richard A Patient lift and transfer device
US8214943B2 (en) 2005-10-07 2012-07-10 Conmedisys, Inc. Steering system for patient transfer device
US8448272B2 (en) 2005-10-07 2013-05-28 MediGlider Corp. Table and slide assemblies for patient transfer device
US8356368B2 (en) 2005-10-07 2013-01-22 MediGlider Corp. Patient lift and transfer device
US8434174B2 (en) 2005-10-07 2013-05-07 MediGlider Corp. Steering system for patient transfer device
US7950080B2 (en) * 2007-08-30 2011-05-31 Kdr Of Oregon, Llc Patient transfer mechanism and gurney equipped therewith
US20090056012A1 (en) * 2007-08-30 2009-03-05 Kdr, Llc Patient transfer mechanism and gurney equipped therewith
US8601619B2 (en) 2009-03-27 2013-12-10 Astir Technologies, Llc Body transfer system with yaw control
US20100242169A1 (en) * 2009-03-27 2010-09-30 Astir Technologies, Llc Body transfer system with yaw control
US8468623B2 (en) 2010-06-10 2013-06-25 Richard A. Patterson Lift chair
US8789219B2 (en) 2010-06-10 2014-07-29 Richard A. Patterson Lift chair
WO2011156753A1 (en) * 2010-06-10 2011-12-15 Patterson Richard A Lift chair
US9084707B2 (en) 2010-06-10 2015-07-21 Richard A. Patterson Lift chair
US9289341B2 (en) 2010-06-10 2016-03-22 Richard A. Patterson Lift chair
US9393168B2 (en) * 2011-05-18 2016-07-19 Vishweshwar Reddy Konda Transfer belt mechanism associated with patient transfer gurney system
US20120291196A1 (en) * 2011-05-18 2012-11-22 Vishweswar Reddy Konda Transfer Belt Mechanism associated with patient transfer gurney system
US9114050B2 (en) 2012-04-16 2015-08-25 Cega Innovations, Llc Systems and methods for transferring patients
US9427367B2 (en) 2012-04-16 2016-08-30 Cega Innovations, Llc System and method for transferring patients
US9101521B2 (en) 2012-04-16 2015-08-11 Cega Innovations, Llc Systems, methods and transfer sheets for transferring patients
US20170027795A1 (en) * 2015-07-24 2017-02-02 Farshid Asil System and methods for safe lifting of patients from hospital beds
US9655800B1 (en) 2016-09-16 2017-05-23 Salvus Transportare, LLC Support apparatus with double roller assembly
US20180078438A1 (en) * 2016-09-16 2018-03-22 Salvus Transportare, LLC Support apparatus with double roller assembly
US10828217B2 (en) * 2016-09-16 2020-11-10 Salvus Transportare, LLC Support apparatus with double roller assembly
WO2023235720A1 (en) * 2022-05-31 2023-12-07 Seneca Devices, Inc. Methods and devices for repositioning a patient on a support apparatus

Also Published As

Publication number Publication date
ZA734600B (en) 1974-06-26
DE2334644A1 (de) 1974-01-31
AU5793773A (en) 1975-01-16
JPS4944587A (ja) 1974-04-26
BE805775A (fr) 1974-02-01
NL7313794A (en) 1975-04-10
GB1415683A (en) 1975-11-26
AU467530B2 (en) 1975-12-04
JPS5624535B2 (ja) 1981-06-06
SE380973B (sv) 1975-11-24
LU68526A1 (ja) 1973-12-10
FR2191872B3 (ja) 1976-06-25
CA974002A (en) 1975-09-09
FR2191872A1 (ja) 1974-02-08

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