BE425577A - - Google Patents
Info
- Publication number
- BE425577A BE425577A BE425577DA BE425577A BE 425577 A BE425577 A BE 425577A BE 425577D A BE425577D A BE 425577DA BE 425577 A BE425577 A BE 425577A
- Authority
- BE
- Belgium
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B21/00—Nitrogen; Compounds thereof
- C01B21/082—Compounds containing nitrogen and non-metals and optionally metals
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Lead Frames For Integrated Circuits (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US140833A US2211093A (en) | 1937-05-05 | 1937-05-05 | Statistical card punch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE425577A true BE425577A (https=) |
Family
ID=22492980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE425577D BE425577A (https=) | 1937-05-05 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2211093A (https=) |
| BE (1) | BE425577A (https=) |
| GB (1) | GB510910A (https=) |
| NL (1) | NL55280C (https=) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2515012A (en) * | 1946-02-23 | 1950-07-11 | William R Kreider | Means to punch any card of a predetermined value within a group of cards |
| NL158805B (nl) * | 1950-02-02 | Boehringer Mannheim Gmbh | Werkwijze voor het binden van in water oplosbare eiwitten aan dragers, aldus verkregen kolommen en andere voorwerpen, alsmede een werkwijze voor de toepassing daarvan. | |
| DE859071C (de) * | 1950-02-19 | 1952-12-11 | Ibm Deutschland | Speichereinrichtung fuer Lochkartenmaschinen |
-
0
- BE BE425577D patent/BE425577A/xx unknown
- NL NL55280D patent/NL55280C/xx active
-
1937
- 1937-05-05 US US140833A patent/US2211093A/en not_active Expired - Lifetime
-
1938
- 1938-04-04 GB GB10305/38A patent/GB510910A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US2211093A (en) | 1940-08-13 |
| NL55280C (https=) | |
| GB510910A (en) | 1939-08-10 |