NL210216A - - Google Patents
Info
- Publication number
- NL210216A NL210216A NL210216DA NL210216A NL 210216 A NL210216 A NL 210216A NL 210216D A NL210216D A NL 210216DA NL 210216 A NL210216 A NL 210216A
- Authority
- NL
- Netherlands
Links
Classifications
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/52—Multiple coating or impregnating multiple coating or impregnating with the same composition or with compositions only differing in the concentration of the constituents, is classified as single coating or impregnation
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/02104—Forming layers
- H01L21/02107—Forming insulating materials on a substrate
- H01L21/02225—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer
- H01L21/02227—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a process other than a deposition process
- H01L21/0223—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a process other than a deposition process formation by oxidation, e.g. oxidation of the substrate
- H01L21/02233—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a process other than a deposition process formation by oxidation, e.g. oxidation of the substrate of the semiconductor substrate or a semiconductor layer
- H01L21/02236—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a process other than a deposition process formation by oxidation, e.g. oxidation of the substrate of the semiconductor substrate or a semiconductor layer group IV semiconductor
- H01L21/02238—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a process other than a deposition process formation by oxidation, e.g. oxidation of the substrate of the semiconductor substrate or a semiconductor layer group IV semiconductor silicon in uncombined form, i.e. pure silicon
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/02104—Forming layers
- H01L21/02107—Forming insulating materials on a substrate
- H01L21/02225—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer
- H01L21/02227—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a process other than a deposition process
- H01L21/02255—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a process other than a deposition process formation by thermal treatment
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S148/00—Metal treatment
- Y10S148/036—Diffusion, nonselective
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S148/00—Metal treatment
- Y10S148/037—Diffusion-deposition
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S148/00—Metal treatment
- Y10S148/043—Dual dielectric
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S148/00—Metal treatment
- Y10S148/049—Equivalence and options
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S148/00—Metal treatment
- Y10S148/118—Oxide films
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S148/00—Metal treatment
- Y10S148/144—Shallow diffusion
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S148/00—Metal treatment
- Y10S148/151—Simultaneous diffusion
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S438/00—Semiconductor device manufacturing: process
- Y10S438/914—Doping
- Y10S438/92—Controlling diffusion profile by oxidation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S438/00—Semiconductor device manufacturing: process
- Y10S438/914—Doping
- Y10S438/923—Diffusion through a layer
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Computer Hardware Design (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Ceramic Engineering (AREA)
- Organic Chemistry (AREA)
- Structural Engineering (AREA)
- Materials Engineering (AREA)
- Formation Of Insulating Films (AREA)
- Photovoltaic Devices (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US550622A US2802760A (en) | 1955-12-02 | 1955-12-02 | Oxidation of semiconductive surfaces for controlled diffusion |
Publications (1)
Publication Number | Publication Date |
---|---|
NL210216A true NL210216A (en, 2012) |
Family
ID=24197930
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL210216D NL210216A (en, 2012) | 1955-12-02 | ||
NL109817D NL109817C (en, 2012) | 1955-12-02 |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL109817D NL109817C (en, 2012) | 1955-12-02 |
Country Status (6)
Country | Link |
---|---|
US (1) | US2802760A (en, 2012) |
BE (1) | BE550586A (en, 2012) |
DE (1) | DE1086512B (en, 2012) |
FR (1) | FR1157894A (en, 2012) |
GB (1) | GB809644A (en, 2012) |
NL (2) | NL109817C (en, 2012) |
Families Citing this family (84)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL201780A (en, 2012) * | 1955-11-05 | |||
NL113003C (en, 2012) * | 1956-08-10 | |||
US2879190A (en) * | 1957-03-22 | 1959-03-24 | Bell Telephone Labor Inc | Fabrication of silicon devices |
NL113470C (en, 2012) * | 1957-06-25 | |||
NL190814A (en, 2012) * | 1957-08-07 | 1900-01-01 | ||
DE1095401B (de) * | 1958-04-16 | 1960-12-22 | Standard Elektrik Lorenz Ag | Verfahren zum Eindiffundieren von Fremdstoffen in einen Halbleiterkoerper zur Herstellung einer elektrischen Halbleiteranordnung |
GB909869A (en, 2012) * | 1958-06-09 | 1900-01-01 | ||
NL241124A (en, 2012) * | 1958-07-09 | |||
US3007816A (en) * | 1958-07-28 | 1961-11-07 | Motorola Inc | Decontamination process |
NL108505C (en, 2012) * | 1958-09-05 | |||
US3001896A (en) * | 1958-12-24 | 1961-09-26 | Ibm | Diffusion control in germanium |
GB945740A (en, 2012) * | 1959-02-06 | Texas Instruments Inc | ||
NL155412C (en, 2012) * | 1959-04-15 | |||
US3054701A (en) * | 1959-06-10 | 1962-09-18 | Westinghouse Electric Corp | Process for preparing p-n junctions in semiconductors |
NL252131A (en, 2012) * | 1959-06-30 | |||
NL256928A (en, 2012) * | 1959-10-29 | |||
US3102061A (en) * | 1960-01-05 | 1963-08-27 | Texas Instruments Inc | Method for thermally etching silicon surfaces |
US3147152A (en) * | 1960-01-28 | 1964-09-01 | Western Electric Co | Diffusion control in semiconductive bodies |
DE1133038B (de) * | 1960-05-10 | 1962-07-12 | Siemens Ag | Halbleiterbauelement mit einem im wesentlichen einkristallinen Halbleiterkoerper undvier Zonen abwechselnden Leitfaehigkeitstyps |
US3084079A (en) * | 1960-10-13 | 1963-04-02 | Pacific Semiconductors Inc | Manufacture of semiconductor devices |
US3183129A (en) * | 1960-10-14 | 1965-05-11 | Fairchild Camera Instr Co | Method of forming a semiconductor |
US3193418A (en) * | 1960-10-27 | 1965-07-06 | Fairchild Camera Instr Co | Semiconductor device fabrication |
US3145126A (en) * | 1961-01-10 | 1964-08-18 | Clevite Corp | Method of making diffused junctions |
NL274819A (en, 2012) * | 1961-02-20 | 1900-01-01 | ||
NL277300A (en, 2012) * | 1961-04-20 | |||
US3095341A (en) * | 1961-06-30 | 1963-06-25 | Bell Telephone Labor Inc | Photosensitive gas phase etching of semiconductors by selective radiation |
US3138495A (en) * | 1961-07-28 | 1964-06-23 | Texas Instruments Inc | Semiconductor device and method of manufacture |
US3210225A (en) * | 1961-08-18 | 1965-10-05 | Texas Instruments Inc | Method of making transistor |
US3237062A (en) * | 1961-10-20 | 1966-02-22 | Westinghouse Electric Corp | Monolithic semiconductor devices |
US3194699A (en) * | 1961-11-13 | 1965-07-13 | Transitron Electronic Corp | Method of making semiconductive devices |
US3156593A (en) * | 1961-11-17 | 1964-11-10 | Bell Telephone Labor Inc | Fabrication of semiconductor devices |
NL289736A (en, 2012) * | 1961-11-18 | |||
NL272046A (en, 2012) * | 1961-11-30 | |||
US3203840A (en) * | 1961-12-14 | 1965-08-31 | Texas Insutruments Inc | Diffusion method |
US3139362A (en) * | 1961-12-29 | 1964-06-30 | Bell Telephone Labor Inc | Method of manufacturing semiconductive devices |
US3200019A (en) * | 1962-01-19 | 1965-08-10 | Rca Corp | Method for making a semiconductor device |
DE1444521B2 (de) * | 1962-02-01 | 1971-02-25 | Siemens AG, 1000 Berlin u 8000 München | Verfahren zur herstellung einer halbleiteranordnung |
US3133840A (en) * | 1962-03-08 | 1964-05-19 | Bell Telephone Labor Inc | Stabilization of junction devices with phosphorous tribromide |
DE1199897B (de) * | 1962-04-03 | 1965-09-02 | Philips Nv | Verfahren zur Herstellung einer Sperrschicht in einem n-leitenden Cadmiumsulfidkoerper |
US3212160A (en) * | 1962-05-18 | 1965-10-19 | Transitron Electronic Corp | Method of manufacturing semiconductive devices |
US3247032A (en) * | 1962-06-20 | 1966-04-19 | Continental Device Corp | Method for controlling diffusion of an active impurity material into a semiconductor body |
BE634311A (en, 2012) * | 1962-06-29 | |||
US3255005A (en) * | 1962-06-29 | 1966-06-07 | Tung Sol Electric Inc | Masking process for semiconductor elements |
US3158505A (en) * | 1962-07-23 | 1964-11-24 | Fairchild Camera Instr Co | Method of placing thick oxide coatings on silicon and article |
GB1012519A (en) * | 1962-08-14 | 1965-12-08 | Texas Instruments Inc | Field-effect transistors |
US3244567A (en) * | 1962-09-10 | 1966-04-05 | Trw Semiconductors Inc | Impurity diffusion method |
GB1052379A (en, 2012) * | 1963-03-28 | 1900-01-01 | ||
US3194701A (en) * | 1963-04-01 | 1965-07-13 | Robert P Lothrop | Method for forming p-n junctions on semiconductors |
US3281915A (en) * | 1963-04-02 | 1966-11-01 | Rca Corp | Method of fabricating a semiconductor device |
US3450581A (en) * | 1963-04-04 | 1969-06-17 | Texas Instruments Inc | Process of coating a semiconductor with a mask and diffusing an impurity therein |
BE650116A (en, 2012) * | 1963-07-05 | 1900-01-01 | ||
US3281291A (en) * | 1963-08-30 | 1966-10-25 | Rca Corp | Semiconductor device fabrication |
NL6407230A (en, 2012) * | 1963-09-28 | 1965-03-29 | ||
US3287188A (en) * | 1963-11-01 | 1966-11-22 | Hughes Aircraft Co | Method for producing a boron diffused sillicon transistor |
US3361594A (en) * | 1964-01-02 | 1968-01-02 | Globe Union Inc | Solar cell and process for making the same |
NL6501786A (en, 2012) * | 1964-02-26 | 1965-08-27 | ||
GB1045514A (en) * | 1964-04-22 | 1966-10-12 | Westinghouse Electric Corp | Simultaneous double diffusion process |
DE1719563C2 (de) * | 1965-04-30 | 1971-10-28 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Verfahren zur Eindiffusion von Phosphor in Siliciumhalbleiterscheiben. Ausscheidung aus: 1280821 |
US3313661A (en) * | 1965-05-14 | 1967-04-11 | Dickson Electronics Corp | Treating of surfaces of semiconductor elements |
GB1145121A (en) * | 1965-07-30 | 1969-03-12 | Associated Semiconductor Mft | Improvements in and relating to transistors |
US3351503A (en) * | 1965-09-10 | 1967-11-07 | Horizons Inc | Production of p-nu junctions by diffusion |
DE1521494B1 (de) * | 1966-02-25 | 1970-11-26 | Siemens Ag | Vorrichtung zum Eindiffundieren von Fremdstoffen in Halbleiterkoerper |
US3468729A (en) * | 1966-03-21 | 1969-09-23 | Westinghouse Electric Corp | Method of making a semiconductor by oxidizing and simultaneous diffusion of impurities having different rates of diffusivity |
US3490962A (en) * | 1966-04-25 | 1970-01-20 | Ibm | Diffusion process |
JPS556287B1 (en, 2012) * | 1966-04-27 | 1980-02-15 | ||
US3477887A (en) * | 1966-07-01 | 1969-11-11 | Motorola Inc | Gaseous diffusion method |
US3484854A (en) * | 1966-10-17 | 1969-12-16 | Westinghouse Electric Corp | Processing semiconductor materials |
US3532565A (en) * | 1967-12-07 | 1970-10-06 | United Aircraft Corp | Antimony pentachloride diffusion |
US3653988A (en) * | 1968-02-05 | 1972-04-04 | Bell Telephone Labor Inc | Method of forming monolithic semiconductor integrated circuit devices |
US3532539A (en) * | 1968-11-04 | 1970-10-06 | Hitachi Ltd | Method for treating the surface of semiconductor devices |
JPS4913909B1 (en, 2012) * | 1970-05-04 | 1974-04-03 | ||
US3943016A (en) * | 1970-12-07 | 1976-03-09 | General Electric Company | Gallium-phosphorus simultaneous diffusion process |
US3770521A (en) * | 1971-04-14 | 1973-11-06 | Ibm | Method for diffusing b or p into s: substrates |
US3742904A (en) * | 1971-06-03 | 1973-07-03 | Motorola Inc | Steam generator and gas insertion device |
US3855024A (en) * | 1971-11-01 | 1974-12-17 | Western Electric Co | Method of vapor-phase polishing a surface of a semiconductor |
US4409260A (en) * | 1979-08-15 | 1983-10-11 | Hughes Aircraft Company | Process for low-temperature surface layer oxidation of a semiconductor substrate |
US4472212A (en) * | 1982-02-26 | 1984-09-18 | At&T Bell Laboratories | Method for fabricating a semiconductor device |
WO1983003029A1 (en) * | 1982-02-26 | 1983-09-01 | Western Electric Co | Diffusion of shallow regions |
FR2547775B1 (fr) * | 1983-06-23 | 1987-12-18 | Metalem Sa | Procede de decoration d'un article, application d'un procede de traitement d'un element de silicium, utilisation d'une plaque de silicium traitee et article decore |
DE3815615A1 (de) * | 1988-05-07 | 1989-11-16 | Bosch Gmbh Robert | Verfahren zur herstellung einer hochsperrenden leistungsdiode |
GB2355850A (en) * | 1999-10-26 | 2001-05-02 | Mitel Semiconductor Ab | Forming oxide layers in semiconductor layers |
US6555407B1 (en) | 1999-10-26 | 2003-04-29 | Zarlink Semiconductor Ab | Method for the controlled oxidiation of materials |
US20050011860A1 (en) * | 2003-07-15 | 2005-01-20 | Masatoshi Ishii | Substrate for magnetic recording medium, method for manufacturing the same and magnetic recording medium |
KR20110069737A (ko) * | 2009-12-17 | 2011-06-23 | 롬 앤드 하스 일렉트로닉 머트어리얼즈, 엘.엘.씨. | 개선된 반도체 기판 텍스쳐링 방법 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2485069A (en) * | 1944-07-20 | 1949-10-18 | Bell Telephone Labor Inc | Translating material of silicon base |
NL34436C (en, 2012) * | 1945-04-20 | |||
BE500569A (en, 2012) * | 1950-01-13 | |||
DE1067131B (de) * | 1954-09-15 | 1959-10-15 | Siemens &. Halske Aktiengesell schatt Berlin und München | Verfahren zum Herstellen einer Halbleiteranordnung mit einer zwischen einer Metallschicht und der Oberflache des Halbleiterkristalls erzeugten Randschicht |
-
0
- BE BE550586D patent/BE550586A/xx unknown
- NL NL210216D patent/NL210216A/xx unknown
- NL NL109817D patent/NL109817C/xx active
-
1955
- 1955-12-02 US US550622A patent/US2802760A/en not_active Expired - Lifetime
-
1956
- 1956-09-01 FR FR1157894D patent/FR1157894A/fr not_active Expired
- 1956-10-27 DE DEW19994A patent/DE1086512B/de active Pending
- 1956-11-29 GB GB36502/56A patent/GB809644A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR1157894A (fr) | 1958-06-04 |
DE1086512B (de) | 1960-08-04 |
GB809644A (en) | 1959-02-25 |
BE550586A (en, 2012) | |
NL109817C (en, 2012) | |
US2802760A (en) | 1957-08-13 |