NL55280C - - Google Patents
Info
- Publication number
- NL55280C NL55280C NL55280DA NL55280C NL 55280 C NL55280 C NL 55280C NL 55280D A NL55280D A NL 55280DA NL 55280 C NL55280 C NL 55280C
- Authority
- NL
- Netherlands
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 |
|---|---|
| NL55280C true NL55280C (en:Method) |
Family
ID=22492980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL55280D NL55280C (en:Method) | 1937-05-05 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2211093A (en:Method) |
| BE (1) | BE425577A (en:Method) |
| GB (1) | GB510910A (en:Method) |
| NL (1) | NL55280C (en:Method) |
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 |
|---|---|
| BE425577A (en:Method) | |
| GB510910A (en) | 1939-08-10 |
| US2211093A (en) | 1940-08-13 |