US3864936A - Container for shipping perishables - Google Patents
Container for shipping perishables Download PDFInfo
- Publication number
- US3864936A US3864936A US433651A US43365174A US3864936A US 3864936 A US3864936 A US 3864936A US 433651 A US433651 A US 433651A US 43365174 A US43365174 A US 43365174A US 3864936 A US3864936 A US 3864936A
- Authority
- US
- United States
- Prior art keywords
- compartment
- box
- freight
- ice
- side walls
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D3/00—Devices using other cold materials; Devices using cold-storage bodies
- F25D3/12—Devices using other cold materials; Devices using cold-storage bodies using solidified gases, e.g. carbon-dioxide snow
- F25D3/125—Movable containers
Definitions
- ABSTRACT A closable box of insulating material spacedly sur- CONTAINER FOR SHIPPING PERISHABLES 1,882,237 10/1932 2 9 933 Inventors: Martin Frank, Cologne; Karl 7x934 Frank, LillZ am Rl'llllfi, both of 250 3 5 1 Germany Assignee: Burger Eisenwerke AG, Primary E. ⁇ 'aminerWi11iam J. Wye
- the compartment is 42 6 5 5 0 6 4 3 u 6 6 5mm 2 8 a F n .1 B 0 7. 42 6 6 v 5 5 oo 8 3 B 2 Z 6 6 m m mh C H r n a e m S I C 5 n U Mn.
- H N 5 made of sheet metal and has one open side snugly pressing against an openable insulating door constituting a side of the box. This door is formed with at least one small pressure-equalization orifice opening into the freight compartment.
- Another object is the provision of such container which will maintain the enclosed freight at 'a very low temperature, but wherein gas evolving from the cooling means is kept out of contact with the freight.
- a further object is an insulated air freight container which is inexpensive to make and easy to use for the shipment of refrigerated freight.
- a shipping container comprising an outer box in which the freight is held in a compartment which is substantially closed.
- An ice compartment above the freight compartment holds the ice and a vertical passage is provided in the chamber formed by the box next to the freight compartment and terminating at the floor of the box in an outlet opening into the outside.
- the ice melts as sublimes and evolves fluid which flows down in the passage past the freight compartment and then leaves the box through the outlet.
- the objects to be shipped are enclosed in the freight compartment which is cooled by the fluid evolved from the ice in an overhead compartment as this fluid runs down past the freight compartment.
- the fluid exits from the container after it has been warmed up by the freight compartment.
- the ice will melt or sublime very slowly, only fast enough to compensate for heat leakage through the walls of the container.
- the box has walls made of insulating material and the compartment has walls made of heat-conducting material such as metal so that little heat is picked up through the walls of the box, but much is passed through the compartment walls.
- the freight compartment has at least two side walls spaced inwardly from two respective side walls of the box. The space between these side walls is the passage, and a similar space isprovided between the bottom wall of the freight compartment and the bottom wall of the box with the outlet in the middle of the box bottom wall.
- the compartment and the box are both rectangularly parallelopipedal with at least one side of the compartment being one side of the box, this side constituting an openable portion allowing the freight compartment to be loaded.
- the ice compartment is formed between an openable cover forming a top wall of the box and a screen or perforated support overlying the freight compartment.
- the outlet is of variable cross-sectional area so that the flow rate through it can be varied to in turn vary the cooling rate.
- the freight compartment is vented to the outside also so as to prevent cooling of this compartment from sucking evolved carbon dioxide in as a result of a pressure drop in the freight compartment.
- the outlet according to yet another feature of the present invention can be connected to an apparatus which collects the cold carbon dioxide and uses it to precool, impregnate, or otherwise treat articles such as foodstuffs about to be loaded into other containers.
- FIG. 1 is a vertical section partly in schematic form through a container according to the present invention.
- FIG. 2 is a horizontal section through the container.
- the container comprises basically a box 10 having side walls Ila-d, a bottom wall lle, and a top wall formed as a cover I2 hinged at 24.
- This box 10 is formed of heat-insulating material such as rigid polystyrene foam lined internally with a reflective coating 25.
- the upper part of the box 10 is formed by a removable collar 26 which defines an ice compartment 14.
- a plate 13 secured to the walls l1a-c is formed along these walls with notches 13a and is provided with short spacers 27 which support a perforated metal sheet 16 along with a central holding pin 28.
- a mass of frozen carbon dioxide 15 is supported on the plate 16 in the compartment l4 bounded by walls Ila-d, the plate 13, and the cover 12.
- a freight compartment is formed in the housing 10 between three side walls l9a-c of sheet metal, a bottom wall 18 also of sheet metal, and a metal top wall 20 under which is supported an insulating top wall 21.
- the walls l9ac are spaced inwardly of the walls Ila-c and spacers 19f serve to maintain this spacing constant and define three vertical passages 23a-c which are connected through the cutout portions 13a to the upper compartment 14.
- Rollers 18a support the bottom wall 18 of the compartment 17 on the bottom wall lle of the outer box 10.
- the walls 19b and are provided with upper racks 19d formed as inwardly bent ridges and with lower racks 19e formed of brackets welded to the interiors of these walls, plates 22 serving to support objects in the freight compartment 17.
- the compartment 17 is open on one side and the walls 19b, 19c, 20, 21 and 18 all snugly abut this wall 11d of the box 10 so that this side 11d, which is actually a door hinged at 30, forms a side of both the ice compartment 14, the freight compartment 17, and forms ends of the passages 23b and 23c. Small holes 29 are formed in the upper third of the hinged door 11d.
- the wall 11a can also be formed as a door, in which case the compartment 17 would be opened at both ends and the space 23a and wall 190 would not exist.
- the bottom wall lle of the box 10 is formed with a central hole 10a which is at least partially blocked by an apertured plug 10b having a central hole 10b whose cross-sectional area determines the amount of fluid, gas or liquid, that can flow out of the compartment 14 through the passages 23a-c which terminate at the passage 24 between walls 18 and lle.
- carbon dioxide gas which is substantially denser than air, passes through the perforated plate 16 and descends from the compartment 14 through the notches 13a in all three passages 230-0, collecting in the passage 24 and passing out of the box through the hole 10b in the plug 10b.
- a shipping container comprising: an outer box forming a substantially closed chamber having a base formed with an outlet opening outside said box and into said chamber;
- said box having a plurality of connected side walls, a top wall bridging said side walls above said ice compartment, and a bottom wall bridging said side walls below said freight compartment at said base, said walls being of insulating material, said means forming said freight compartment having at least two side walls spaced from two respective side walls of said box, a bottom wall spaced from the box bottom.
- said side walls of said freight compartment beigh of heatconducting material, said outlet being a throughgoing hole in the box bottom wall, said means forming said ice compartment including a rigid perforated support plate for said ice secured to said box side walls, at least one of the box side walls constituting a side wall of said compartment and being formed with an openable door, the latter wall being formed with at least one throughgoing hole opening on one side into said freight compartment and on the other side outside said box;
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
- Refrigerator Housings (AREA)
- Packages (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2304718A DE2304718A1 (de) | 1973-01-31 | 1973-01-31 | Kuehlcontainer |
Publications (1)
Publication Number | Publication Date |
---|---|
US3864936A true US3864936A (en) | 1975-02-11 |
Family
ID=5870502
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US433651A Expired - Lifetime US3864936A (en) | 1973-01-31 | 1974-01-16 | Container for shipping perishables |
Country Status (8)
Country | Link |
---|---|
US (1) | US3864936A (ja) |
JP (1) | JPS49106044A (ja) |
DE (1) | DE2304718A1 (ja) |
ES (1) | ES420681A1 (ja) |
FR (1) | FR2216531B1 (ja) |
GB (1) | GB1429815A (ja) |
IT (1) | IT1004645B (ja) |
NL (1) | NL7315425A (ja) |
Cited By (30)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4276752A (en) * | 1978-09-22 | 1981-07-07 | Pax Equipment Management, Inc. | Refrigerated air cargo container |
US4294079A (en) * | 1980-03-12 | 1981-10-13 | Better Agricultural Goals Corporation | Insulated container and process for shipping perishables |
US4299429A (en) * | 1980-02-13 | 1981-11-10 | Franklin Jr Paul R | Cooler with inclined upper CO2 cooled surface |
US4457142A (en) * | 1981-10-16 | 1984-07-03 | Firma Heinrich Bucher | Method of chilling materials and chilling container |
US4741167A (en) * | 1986-11-20 | 1988-05-03 | Wigley Freddie J | Method and apparatus for transporting perishable materials |
US4761969A (en) * | 1987-02-09 | 1988-08-09 | Moe James S | Refrigeration system |
US4825666A (en) * | 1987-11-12 | 1989-05-02 | Saia Iii Louis P | Portable self-contained cooler/freezer apparatus for use on common carrier type unrefrigerated truck lines and the like |
US4903494A (en) * | 1989-08-21 | 1990-02-27 | Wigley Freddie J | Method for preparing ice for transportation |
US4951479A (en) * | 1989-11-24 | 1990-08-28 | J.R. Simplot Company | Refrigeration system |
WO1990013778A1 (en) * | 1989-05-01 | 1990-11-15 | Saia Louis P Iii | Portable self-contained cooler/freezer apparatus for use on common carrier type unrefrigerated truck lines and the like |
US4991402A (en) * | 1987-11-12 | 1991-02-12 | Saia Iii Louis P | Portable self-contained cooler/freezer apparatus for use on common carrier type unrefrigerated truck lines and the like |
US5074126A (en) * | 1987-10-02 | 1991-12-24 | Societe Conseil Investissements Management Pour L'entreprise C.I.M.E. Sarl | Mobile refrigerated chamber for food products |
US5081850A (en) * | 1989-05-25 | 1992-01-21 | Hoshizaki Denki Kabushiki Kaisha | Refrigerator |
US5125237A (en) * | 1987-11-12 | 1992-06-30 | Louis P. Saia, III | Portable self-contained cooler/freezer apparatus for use on airplanes, common carrier type unrefrigerated truck lines, and the like |
US5271233A (en) * | 1991-06-28 | 1993-12-21 | African Oxygen Limited | Method and means for providing refrigeration |
US5323622A (en) * | 1993-04-21 | 1994-06-28 | Cryo-Trans, Inc. | Multi-temperature cryogenic refrigeration system |
WO1994024498A1 (en) * | 1993-04-19 | 1994-10-27 | Grumman Aerospace Corporation | Self-contained cooler/freezer apparatus |
US5397010A (en) * | 1992-09-29 | 1995-03-14 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Isothermal container, particularly for transporting fresh or frozen products |
US5660057A (en) * | 1996-07-30 | 1997-08-26 | Tyree, Jr.; Lewis | Carbon dioxide railroad car refrigeration system |
FR2802186A1 (fr) * | 1999-12-13 | 2001-06-15 | Messer France | Conteneur de transport refrigere de produits divers et procede pour sa constitution et son chargement |
NL1016535C2 (nl) * | 2000-07-24 | 2002-01-25 | Willem Cornelis Schuddebeurs | Koelinrichting. |
WO2003025479A2 (en) * | 2001-09-19 | 2003-03-27 | Lester Smith | All purpose portable ice chest |
US20040035139A1 (en) * | 1999-07-21 | 2004-02-26 | Lindsey Leslie John | Refrigerated air freight container |
US20050217310A1 (en) * | 2004-04-01 | 2005-10-06 | Luehrs Frederick G | Refrigeration system and components thereof |
US20080036238A1 (en) * | 2006-08-11 | 2008-02-14 | Weeda Dewey J | Secondary door and temperature control system and method |
US20110180550A1 (en) * | 2010-01-26 | 2011-07-28 | Kenneally Keith A | Cooler box |
US20140196496A1 (en) * | 2011-08-16 | 2014-07-17 | Gary Wayne Ferguson | Delivery container for temperature sensitive goods |
CN104859960A (zh) * | 2015-06-04 | 2015-08-26 | 苏州市瑞晟医疗器械有限公司 | 一种简易式药物储纳冰桶 |
US20160114326A1 (en) * | 2013-06-03 | 2016-04-28 | Biocision, Llc | Cryogenic systems |
CN107215564A (zh) * | 2017-06-06 | 2017-09-29 | 河南师范大学 | 一种多功能食品安全配送装置 |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2121154A (en) * | 1982-06-01 | 1983-12-14 | Jacqueline White | A milk container |
FR2760826B1 (fr) * | 1997-03-11 | 1999-04-23 | Carboxyque Francaise | Chariot refrigere et installation de rechargement en agent refrigerant |
JP2016030703A (ja) * | 2014-07-28 | 2016-03-07 | 日本液炭株式会社 | ドライアイスの貯蔵方法 |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1752276A (en) * | 1928-12-08 | 1930-03-25 | Dryice Equipment Corp | Refrigerating apparatus and method |
US1864259A (en) * | 1929-02-21 | 1932-06-21 | Dryice Equipment Corp | Refrigerator car and detachable unit therefor |
US1870685A (en) * | 1928-04-12 | 1932-08-09 | Dryice Equipment Corp | Refrigerator truck body |
US1880735A (en) * | 1929-07-17 | 1932-10-04 | James H Bell | Refrigerator |
US1882237A (en) * | 1928-04-09 | 1932-10-11 | Burt H Weston | Refrigerating apparatus |
US1926700A (en) * | 1932-10-06 | 1933-09-12 | Pennsylvania Railroad Co | Railway refrigerator container |
US1965205A (en) * | 1932-03-12 | 1934-07-03 | Walter L Smith | Method of and apparatus for refrigeration with solid carbon dioxide |
US2508385A (en) * | 1947-08-08 | 1950-05-23 | Charles B Hall | Refrigerator container cooled by carbon dioxide ice |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR661487A (fr) * | 1928-10-04 | 1929-07-25 | Drylce Equipment Corp | Procédés de production de froid et traitement d'acide carbonique solide pour servir d'agent frigorifique |
FR780534A (fr) * | 1934-01-17 | 1935-04-27 | Perfectionnements aux enceintes frigorifiques | |
US2432011A (en) * | 1945-11-14 | 1947-12-02 | John M Hall | Ice refrigerator with an air pump circuit |
JPS446031Y1 (ja) * | 1966-05-18 | 1969-03-05 |
-
1973
- 1973-01-31 DE DE2304718A patent/DE2304718A1/de not_active Withdrawn
- 1973-11-12 NL NL7315425A patent/NL7315425A/xx unknown
- 1973-11-20 IT IT70404/73A patent/IT1004645B/it active
- 1973-11-20 ES ES420681A patent/ES420681A1/es not_active Expired
- 1973-11-22 GB GB5435973A patent/GB1429815A/en not_active Expired
- 1973-12-18 FR FR7346419A patent/FR2216531B1/fr not_active Expired
-
1974
- 1974-01-16 US US433651A patent/US3864936A/en not_active Expired - Lifetime
- 1974-01-31 JP JP49013294A patent/JPS49106044A/ja active Pending
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1882237A (en) * | 1928-04-09 | 1932-10-11 | Burt H Weston | Refrigerating apparatus |
US1870685A (en) * | 1928-04-12 | 1932-08-09 | Dryice Equipment Corp | Refrigerator truck body |
US1752276A (en) * | 1928-12-08 | 1930-03-25 | Dryice Equipment Corp | Refrigerating apparatus and method |
US1864259A (en) * | 1929-02-21 | 1932-06-21 | Dryice Equipment Corp | Refrigerator car and detachable unit therefor |
US1880735A (en) * | 1929-07-17 | 1932-10-04 | James H Bell | Refrigerator |
US1965205A (en) * | 1932-03-12 | 1934-07-03 | Walter L Smith | Method of and apparatus for refrigeration with solid carbon dioxide |
US1926700A (en) * | 1932-10-06 | 1933-09-12 | Pennsylvania Railroad Co | Railway refrigerator container |
US2508385A (en) * | 1947-08-08 | 1950-05-23 | Charles B Hall | Refrigerator container cooled by carbon dioxide ice |
Cited By (47)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4276752A (en) * | 1978-09-22 | 1981-07-07 | Pax Equipment Management, Inc. | Refrigerated air cargo container |
US4299429A (en) * | 1980-02-13 | 1981-11-10 | Franklin Jr Paul R | Cooler with inclined upper CO2 cooled surface |
US4294079A (en) * | 1980-03-12 | 1981-10-13 | Better Agricultural Goals Corporation | Insulated container and process for shipping perishables |
US4457142A (en) * | 1981-10-16 | 1984-07-03 | Firma Heinrich Bucher | Method of chilling materials and chilling container |
US4741167A (en) * | 1986-11-20 | 1988-05-03 | Wigley Freddie J | Method and apparatus for transporting perishable materials |
US4761969A (en) * | 1987-02-09 | 1988-08-09 | Moe James S | Refrigeration system |
US5074126A (en) * | 1987-10-02 | 1991-12-24 | Societe Conseil Investissements Management Pour L'entreprise C.I.M.E. Sarl | Mobile refrigerated chamber for food products |
US4991402A (en) * | 1987-11-12 | 1991-02-12 | Saia Iii Louis P | Portable self-contained cooler/freezer apparatus for use on common carrier type unrefrigerated truck lines and the like |
US5337579A (en) * | 1987-11-12 | 1994-08-16 | The Pallet Reefer Company | Portable self-contained cooler/freezer apparatus for use on airplanes, common carrier type unrefrigerated truck lines, and the like |
US5125237A (en) * | 1987-11-12 | 1992-06-30 | Louis P. Saia, III | Portable self-contained cooler/freezer apparatus for use on airplanes, common carrier type unrefrigerated truck lines, and the like |
US4825666A (en) * | 1987-11-12 | 1989-05-02 | Saia Iii Louis P | Portable self-contained cooler/freezer apparatus for use on common carrier type unrefrigerated truck lines and the like |
WO1990013778A1 (en) * | 1989-05-01 | 1990-11-15 | Saia Louis P Iii | Portable self-contained cooler/freezer apparatus for use on common carrier type unrefrigerated truck lines and the like |
US5081850A (en) * | 1989-05-25 | 1992-01-21 | Hoshizaki Denki Kabushiki Kaisha | Refrigerator |
US4903494A (en) * | 1989-08-21 | 1990-02-27 | Wigley Freddie J | Method for preparing ice for transportation |
USRE34533E (en) * | 1989-08-21 | 1994-02-08 | Wigley; Freddie J. | Method for preparing ice for transportation |
US4951479A (en) * | 1989-11-24 | 1990-08-28 | J.R. Simplot Company | Refrigeration system |
US5271233A (en) * | 1991-06-28 | 1993-12-21 | African Oxygen Limited | Method and means for providing refrigeration |
US5397010A (en) * | 1992-09-29 | 1995-03-14 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Isothermal container, particularly for transporting fresh or frozen products |
WO1994024498A1 (en) * | 1993-04-19 | 1994-10-27 | Grumman Aerospace Corporation | Self-contained cooler/freezer apparatus |
US5363670A (en) * | 1993-04-19 | 1994-11-15 | Anthony Bartilucci | Self-contained cooler/freezer apparatus |
US5323622A (en) * | 1993-04-21 | 1994-06-28 | Cryo-Trans, Inc. | Multi-temperature cryogenic refrigeration system |
US5415009A (en) * | 1993-04-21 | 1995-05-16 | Cryo-Trans, Inc. | Cryogenic refrigeration system with insulated floor |
US5660057A (en) * | 1996-07-30 | 1997-08-26 | Tyree, Jr.; Lewis | Carbon dioxide railroad car refrigeration system |
US20040035139A1 (en) * | 1999-07-21 | 2004-02-26 | Lindsey Leslie John | Refrigerated air freight container |
US6813898B2 (en) * | 1999-07-21 | 2004-11-09 | Leslie John Lindsay | Refrigerated air freight container |
WO2001044731A1 (en) * | 1999-12-13 | 2001-06-21 | Messer France S.A. | Container for refrigerated transport of various products and process for its construction and its charging |
FR2802186A1 (fr) * | 1999-12-13 | 2001-06-15 | Messer France | Conteneur de transport refrigere de produits divers et procede pour sa constitution et son chargement |
NL1016535C2 (nl) * | 2000-07-24 | 2002-01-25 | Willem Cornelis Schuddebeurs | Koelinrichting. |
WO2003025479A2 (en) * | 2001-09-19 | 2003-03-27 | Lester Smith | All purpose portable ice chest |
US6574983B2 (en) * | 2001-09-19 | 2003-06-10 | Lester Smith | All purpose portable ice chest |
WO2003025479A3 (en) * | 2001-09-19 | 2003-12-04 | Lester Smith | All purpose portable ice chest |
US7451614B2 (en) | 2004-04-01 | 2008-11-18 | Perlick Corporation | Refrigeration system and components thereof |
US20050217310A1 (en) * | 2004-04-01 | 2005-10-06 | Luehrs Frederick G | Refrigeration system and components thereof |
US20100270826A1 (en) * | 2006-08-11 | 2010-10-28 | Weeda Dewey J | Secondary door and temperature control system and method |
US20080036238A1 (en) * | 2006-08-11 | 2008-02-14 | Weeda Dewey J | Secondary door and temperature control system and method |
US7703835B2 (en) | 2006-08-11 | 2010-04-27 | Weeda Dewey J | Secondary door and temperature control system and method |
US20110180550A1 (en) * | 2010-01-26 | 2011-07-28 | Kenneally Keith A | Cooler box |
WO2011093911A1 (en) * | 2010-01-26 | 2011-08-04 | Kenneally Keith A | Cooler box |
US8292119B2 (en) | 2010-01-26 | 2012-10-23 | Kenneally Keith A | Cooler box |
US20140196496A1 (en) * | 2011-08-16 | 2014-07-17 | Gary Wayne Ferguson | Delivery container for temperature sensitive goods |
US10307761B2 (en) * | 2013-06-03 | 2019-06-04 | Astero Bio Corporation | Cryogenic systems |
US20160114326A1 (en) * | 2013-06-03 | 2016-04-28 | Biocision, Llc | Cryogenic systems |
US11813614B2 (en) | 2013-06-03 | 2023-11-14 | Biolife Solutions, Inc. | Cryogenic systems |
US11229913B2 (en) | 2013-06-03 | 2022-01-25 | Biolife Solutions, Inc. | Cryogenic systems |
CN104859960A (zh) * | 2015-06-04 | 2015-08-26 | 苏州市瑞晟医疗器械有限公司 | 一种简易式药物储纳冰桶 |
CN107215564B (zh) * | 2017-06-06 | 2018-09-11 | 河南师范大学 | 一种多功能食品安全配送装置 |
CN107215564A (zh) * | 2017-06-06 | 2017-09-29 | 河南师范大学 | 一种多功能食品安全配送装置 |
Also Published As
Publication number | Publication date |
---|---|
NL7315425A (ja) | 1974-08-02 |
GB1429815A (en) | 1976-03-31 |
ES420681A1 (es) | 1976-04-01 |
IT1004645B (it) | 1976-07-20 |
JPS49106044A (ja) | 1974-10-08 |
FR2216531A1 (ja) | 1974-08-30 |
DE2304718A1 (de) | 1974-08-01 |
FR2216531B1 (ja) | 1978-01-06 |
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