FR575760A - - Google Patents
Info
- Publication number
- FR575760A FR575760A FR575760DA FR575760A FR 575760 A FR575760 A FR 575760A FR 575760D A FR575760D A FR 575760DA FR 575760 A FR575760 A FR 575760A
- Authority
- FR
- France
- 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
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J35/00—X-ray tubes
- H01J35/02—Details
- H01J35/20—Selection of substances for gas fillings; Means for obtaining or maintaining the desired pressure within the tube, e.g. by gettering
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL1718849X | 1923-09-28 | ||
| GB2486023A GB228592A (en) | 1923-10-05 | 1923-10-05 | Improvements in and relating to incandescent cathode x-ray tubes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR575760A true FR575760A (cs) | 1924-08-06 |
Family
ID=26257337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR575760D Expired FR575760A (cs) | 1923-09-28 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US1718849A (cs) |
| DE (1) | DE568306C (cs) |
| FR (1) | FR575760A (cs) |
| NL (1) | NL24985C (cs) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2683223A (en) * | 1952-07-24 | 1954-07-06 | Licentia Gmbh | X-ray tube |
| US2836747A (en) * | 1955-03-28 | 1958-05-27 | Dunlee Corp | X-ray tube cathode |
-
0
- FR FR575760D patent/FR575760A/fr not_active Expired
- NL NL24985D patent/NL24985C/xx active
-
1924
- 1924-01-09 DE DEN22737D patent/DE568306C/de not_active Expired
- 1924-02-09 US US691658A patent/US1718849A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| NL24985C (cs) | |
| DE568306C (de) | 1933-01-17 |
| US1718849A (en) | 1929-06-25 |