NO135296B - - Google Patents
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- Publication number
- NO135296B NO135296B NO4152/72A NO415272A NO135296B NO 135296 B NO135296 B NO 135296B NO 4152/72 A NO4152/72 A NO 4152/72A NO 415272 A NO415272 A NO 415272A NO 135296 B NO135296 B NO 135296B
- Authority
- NO
- Norway
- Prior art keywords
- methyl
- dione
- disemicarbazone
- compound
- acetate
- Prior art date
Links
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 21
- WFDIJRYMOXRFFG-UHFFFAOYSA-N acetic acid anhydride Natural products CC(=O)OC(C)=O WFDIJRYMOXRFFG-UHFFFAOYSA-N 0.000 claims description 15
- 150000001875 compounds Chemical class 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 9
- CPELXLSAUQHCOX-UHFFFAOYSA-N Hydrogen bromide Chemical compound Br CPELXLSAUQHCOX-UHFFFAOYSA-N 0.000 claims description 7
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 6
- VLTRZXGMWDSKGL-UHFFFAOYSA-N perchloric acid Chemical compound OCl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-N 0.000 claims description 6
- 238000002360 preparation method Methods 0.000 claims description 5
- 239000002253 acid Substances 0.000 claims description 4
- DUIOPKIIICUYRZ-UHFFFAOYSA-N semicarbazide Chemical compound NNC(N)=O DUIOPKIIICUYRZ-UHFFFAOYSA-N 0.000 claims description 4
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 claims description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 3
- 239000001257 hydrogen Substances 0.000 claims description 3
- 229910052739 hydrogen Inorganic materials 0.000 claims description 3
- 229910000042 hydrogen bromide Inorganic materials 0.000 claims description 3
- 229910000041 hydrogen chloride Inorganic materials 0.000 claims description 3
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 claims description 3
- 229910000040 hydrogen fluoride Inorganic materials 0.000 claims description 3
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 claims description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 2
- 125000004432 carbon atom Chemical group C* 0.000 claims description 2
- 239000011737 fluorine Substances 0.000 claims description 2
- 229910052731 fluorine Inorganic materials 0.000 claims description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 2
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 2
- 239000001301 oxygen Substances 0.000 claims description 2
- 229910052760 oxygen Inorganic materials 0.000 claims description 2
- 150000007659 semicarbazones Chemical group 0.000 claims description 2
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 10
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 9
- 239000000203 mixture Substances 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical class [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 4
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 3
- 239000002026 chloroform extract Substances 0.000 description 3
- 238000002425 crystallisation Methods 0.000 description 3
- 230000008025 crystallization Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- -1 steroid compounds Chemical class 0.000 description 3
- UJTTUOLQLCQZEA-UHFFFAOYSA-N 9h-fluoren-9-ylmethyl n-(4-hydroxybutyl)carbamate Chemical compound C1=CC=C2C(COC(=O)NCCCCO)C3=CC=CC=C3C2=C1 UJTTUOLQLCQZEA-UHFFFAOYSA-N 0.000 description 2
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 2
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 230000003110 anti-inflammatory effect Effects 0.000 description 2
- ASGJEMPQQVNTGO-UHFFFAOYSA-N benzene chloroform Chemical compound C(Cl)(Cl)Cl.C1=CC=CC=C1.C1=CC=CC=C1 ASGJEMPQQVNTGO-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000002036 chloroform fraction Substances 0.000 description 2
- JYGXADMDTFJGBT-VWUMJDOOSA-N hydrocortisone Chemical compound O=C1CC[C@]2(C)[C@H]3[C@@H](O)C[C@](C)([C@@](CC4)(O)C(=O)CO)[C@@H]4[C@@H]3CCC2=C1 JYGXADMDTFJGBT-VWUMJDOOSA-N 0.000 description 2
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 2
- 235000019341 magnesium sulphate Nutrition 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 239000012299 nitrogen atmosphere Substances 0.000 description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 2
- 150000003128 pregnanes Chemical class 0.000 description 2
- 239000011541 reaction mixture Substances 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 239000011780 sodium chloride Substances 0.000 description 2
- 150000003431 steroids Chemical class 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 2
- FUFLCEKSBBHCMO-UHFFFAOYSA-N 11-dehydrocorticosterone Natural products O=C1CCC2(C)C3C(=O)CC(C)(C(CC4)C(=O)CO)C4C3CCC2=C1 FUFLCEKSBBHCMO-UHFFFAOYSA-N 0.000 description 1
- MFYSYFVPBJMHGN-ZPOLXVRWSA-N Cortisone Chemical compound O=C1CC[C@]2(C)[C@H]3C(=O)C[C@](C)([C@@](CC4)(O)C(=O)CO)[C@@H]4[C@@H]3CCC2=C1 MFYSYFVPBJMHGN-ZPOLXVRWSA-N 0.000 description 1
- MFYSYFVPBJMHGN-UHFFFAOYSA-N Cortisone Natural products O=C1CCC2(C)C3C(=O)CC(C)(C(CC4)(O)C(=O)CO)C4C3CCC2=C1 MFYSYFVPBJMHGN-UHFFFAOYSA-N 0.000 description 1
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 1
- 206010003246 arthritis Diseases 0.000 description 1
- NDKBVBUGCNGSJJ-UHFFFAOYSA-M benzyltrimethylammonium hydroxide Chemical compound [OH-].C[N+](C)(C)CC1=CC=CC=C1 NDKBVBUGCNGSJJ-UHFFFAOYSA-M 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 229960004544 cortisone Drugs 0.000 description 1
- 239000003085 diluting agent Substances 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229960000890 hydrocortisone Drugs 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 125000001570 methylene group Chemical group [H]C([H])([*:1])[*:2] 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 150000004967 organic peroxy acids Chemical class 0.000 description 1
- 229910000028 potassium bicarbonate Inorganic materials 0.000 description 1
- 235000015497 potassium bicarbonate Nutrition 0.000 description 1
- 239000011736 potassium bicarbonate Substances 0.000 description 1
- TYJJADVDDVDEDZ-UHFFFAOYSA-M potassium hydrogencarbonate Chemical compound [K+].OC([O-])=O TYJJADVDDVDEDZ-UHFFFAOYSA-M 0.000 description 1
- WSVOMANDJDYYEY-CWNVBEKCSA-N prednylidene Chemical compound O=C1C=C[C@]2(C)[C@H]3[C@@H](O)C[C@](C)([C@@](C(=C)C4)(O)C(=O)CO)[C@@H]4[C@@H]3CCC2=C1 WSVOMANDJDYYEY-CWNVBEKCSA-N 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- CIHOLLKRGTVIJN-UHFFFAOYSA-N tert‐butyl hydroperoxide Chemical compound CC(C)(C)OO CIHOLLKRGTVIJN-UHFFFAOYSA-N 0.000 description 1
- 230000001225 therapeutic effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/12—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
- E21B47/14—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling using acoustic waves
- E21B47/18—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling using acoustic waves through the well fluid, e.g. mud pressure pulse telemetry
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/12—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
- E21B47/14—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling using acoustic waves
- E21B47/18—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling using acoustic waves through the well fluid, e.g. mud pressure pulse telemetry
- E21B47/20—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling using acoustic waves through the well fluid, e.g. mud pressure pulse telemetry by modulation of mud waves, e.g. by continuous modulation
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Geology (AREA)
- Geophysics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Remote Sensing (AREA)
- Acoustics & Sound (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
- Geophysics And Detection Of Objects (AREA)
- Steroid Compounds (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US21306171A | 1971-12-28 | 1971-12-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| NO135296B true NO135296B (da) | 1976-12-06 |
| NO135296C NO135296C (da) | 1977-03-16 |
Family
ID=22793597
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO4152/72A NO135296C (da) | 1971-12-28 | 1972-11-15 |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US3789355A (da) |
| AU (1) | AU473372B2 (da) |
| CA (1) | CA968883A (da) |
| DK (1) | DK157213C (da) |
| GB (1) | GB1404620A (da) |
| IE (1) | IE37814B1 (da) |
| MY (1) | MY7600056A (da) |
| NL (1) | NL173875C (da) |
| NO (1) | NO135296C (da) |
| OA (1) | OA04307A (da) |
Families Citing this family (37)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3982224A (en) * | 1973-08-23 | 1976-09-21 | Mobil Oil Corporation | Method and apparatus for transmitting downhole information from a well |
| US3997867A (en) * | 1973-09-17 | 1976-12-14 | Schlumberger Technology Corporation | Well bore data-transmission apparatus |
| US4001775A (en) * | 1973-10-03 | 1977-01-04 | Mobil Oil Corporation | Automatic bit synchronization method and apparatus for a logging-while-drilling receiver |
| US3983948A (en) * | 1974-07-01 | 1976-10-05 | Texas Dynamatics, Inc. | Method and apparatus for indicating the orientation of a down hole drilling assembly |
| US4021773A (en) * | 1974-10-29 | 1977-05-03 | Sun Oil Company Of Pennsylvania | Acoustical pick-up for reception of signals from a drill pipe |
| US4078620A (en) * | 1975-03-10 | 1978-03-14 | Westlake John H | Method of and apparatus for telemetering information from a point in a well borehole to the earth's surface |
| US4147223A (en) * | 1976-03-29 | 1979-04-03 | Mobil Oil Corporation | Logging-while-drilling apparatus |
| US4100528A (en) * | 1976-09-29 | 1978-07-11 | Schlumberger Technology Corporation | Measuring-while-drilling method and system having a digital motor control |
| US4103281A (en) * | 1976-09-29 | 1978-07-25 | Schlumberger Technology Corporation | Measuring-while-drilling system having motor speed detection during encoding |
| US4167000A (en) * | 1976-09-29 | 1979-09-04 | Schlumberger Technology Corporation | Measuring-while drilling system and method having encoder with feedback compensation |
| US4215427A (en) * | 1978-02-27 | 1980-07-29 | Sangamo Weston, Inc. | Carrier tracking apparatus and method for a logging-while-drilling system |
| US4215425A (en) * | 1978-02-27 | 1980-07-29 | Sangamo Weston, Inc. | Apparatus and method for filtering signals in a logging-while-drilling system |
| US4216536A (en) * | 1978-10-10 | 1980-08-05 | Exploration Logging, Inc. | Transmitting well logging data |
| US4733232A (en) * | 1983-06-23 | 1988-03-22 | Teleco Oilfield Services Inc. | Method and apparatus for borehole fluid influx detection |
| US4733233A (en) * | 1983-06-23 | 1988-03-22 | Teleco Oilfield Services Inc. | Method and apparatus for borehole fluid influx detection |
| US5220963A (en) * | 1989-12-22 | 1993-06-22 | Patton Consulting, Inc. | System for controlled drilling of boreholes along planned profile |
| US5154078A (en) * | 1990-06-29 | 1992-10-13 | Anadrill, Inc. | Kick detection during drilling |
| US5275040A (en) * | 1990-06-29 | 1994-01-04 | Anadrill, Inc. | Method of and apparatus for detecting an influx into a well while drilling |
| US5249161A (en) * | 1992-08-21 | 1993-09-28 | Schlumberger Technology Corporation | Methods and apparatus for preventing jamming of encoder of logging while drilling tool |
| US5237540A (en) * | 1992-08-21 | 1993-08-17 | Schlumberger Technology Corporation | Logging while drilling tools utilizing magnetic positioner assisted phase shifts |
| US5375098A (en) * | 1992-08-21 | 1994-12-20 | Schlumberger Technology Corporation | Logging while drilling tools, systems, and methods capable of transmitting data at a plurality of different frequencies |
| US5293937A (en) * | 1992-11-13 | 1994-03-15 | Halliburton Company | Acoustic system and method for performing operations in a well |
| NO305219B1 (no) * | 1994-03-16 | 1999-04-19 | Aker Eng As | FremgangsmÕte og sender/mottaker for overf°ring av signaler via et medium i r°r eller slanger |
| US5490121A (en) * | 1994-08-17 | 1996-02-06 | Halliburton Company | Nonlinear equalizer for measurement while drilling telemetry system |
| US5668457A (en) * | 1995-06-30 | 1997-09-16 | Martin Marietta Corporation | Variable-frequency AC induction motor controller |
| GB9607297D0 (en) * | 1996-04-09 | 1996-06-12 | Anadrill Int Sa | Noise detection and suppression system for wellbore telemetry |
| US5864772A (en) * | 1996-12-23 | 1999-01-26 | Schlumberger Technology Corporation | Apparatus, system and method to transmit and display acquired well data in near real time at a remote location |
| US6360823B1 (en) * | 2000-07-20 | 2002-03-26 | Intevep, S.A. | Apparatus and method for performing downhole measurements |
| GB2405725B (en) * | 2003-09-05 | 2006-11-01 | Schlumberger Holdings | Borehole telemetry system |
| US6998724B2 (en) * | 2004-02-18 | 2006-02-14 | Fmc Technologies, Inc. | Power generation system |
| US7348893B2 (en) * | 2004-12-22 | 2008-03-25 | Schlumberger Technology Corporation | Borehole communication and measurement system |
| WO2007076039A2 (en) * | 2005-12-20 | 2007-07-05 | Massachusetts Institute Of Technology | Communications and power harvesting system for in-pipe wireless sensor networks |
| US20090038804A1 (en) * | 2007-08-09 | 2009-02-12 | Going Iii Walter S | Subsurface Safety Valve for Electric Subsea Tree |
| US8151905B2 (en) * | 2008-05-19 | 2012-04-10 | Hs International, L.L.C. | Downhole telemetry system and method |
| CN102159969A (zh) * | 2008-08-23 | 2011-08-17 | 赫尔曼·科利特 | 使用改进的多频液压振动器的通信方法 |
| US8302685B2 (en) * | 2009-01-30 | 2012-11-06 | Schlumberger Technology Corporation | Mud pulse telemetry data modulation technique |
| BE1019411A4 (fr) * | 2010-07-09 | 2012-07-03 | Ion Beam Applic Sa | Moyen de modification du profil de champ magnetique dans un cyclotron. |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2700131A (en) * | 1951-07-20 | 1955-01-18 | Lane Wells Co | Measurement system |
| US3015801A (en) * | 1959-06-16 | 1962-01-02 | David C Kalbfell | Drill pipe module data collection and transmission system |
| US3309656A (en) * | 1964-06-10 | 1967-03-14 | Mobil Oil Corp | Logging-while-drilling system |
| US3622971A (en) * | 1969-06-30 | 1971-11-23 | Arps Corp | Method and apparatus for surveying the direction and inclination of a borehole |
-
1971
- 1971-12-28 US US00213061A patent/US3789355A/en not_active Expired - Lifetime
-
1972
- 1972-11-15 NO NO4152/72A patent/NO135296C/no unknown
- 1972-11-23 AU AU49183/72A patent/AU473372B2/en not_active Expired
- 1972-11-27 IE IE1647/72A patent/IE37814B1/xx unknown
- 1972-11-29 GB GB5513472A patent/GB1404620A/en not_active Expired
- 1972-12-19 CA CA159,440A patent/CA968883A/en not_active Expired
- 1972-12-26 OA OA54798A patent/OA04307A/xx unknown
- 1972-12-27 DK DK647472A patent/DK157213C/da not_active IP Right Cessation
- 1972-12-28 NL NLAANVRAGE7217775,A patent/NL173875C/xx not_active IP Right Cessation
-
1976
- 1976-12-30 MY MY56/76A patent/MY7600056A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CA968883A (en) | 1975-06-03 |
| OA04307A (fr) | 1980-01-15 |
| GB1404620A (en) | 1975-09-03 |
| NL7217775A (da) | 1973-07-02 |
| AU473372B2 (en) | 1976-06-17 |
| IE37814B1 (en) | 1977-10-26 |
| IE37814L (en) | 1973-06-28 |
| NO135296C (da) | 1977-03-16 |
| NL173875C (nl) | 1984-03-16 |
| MY7600056A (en) | 1976-12-31 |
| DK157213C (da) | 1990-04-23 |
| US3789355A (en) | 1974-01-29 |
| DK157213B (da) | 1989-11-20 |
| AU4918372A (en) | 1974-05-23 |
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