NL33136C - - Google Patents
Info
- Publication number
- NL33136C NL33136C NL33136DA NL33136C NL 33136 C NL33136 C NL 33136C NL 33136D A NL33136D A NL 33136DA NL 33136 C NL33136 C NL 33136C
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
- H01J9/42—Measurement or testing during manufacture
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/40—Investigating fluid-tightness of structures by using electric means, e.g. by observing electric discharges
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
- Medical Preparation Storing Or Oral Administration Devices (AREA)
- Joining Of Glass To Other Materials (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE375123X | 1930-08-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL33136C true NL33136C (id) | 1934-02-15 |
Family
ID=6344020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL33136D NL33136C (id) | 1930-08-11 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US1917465A (id) |
| FR (1) | FR721206A (id) |
| GB (1) | GB375123A (id) |
| NL (1) | NL33136C (id) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2734628A (en) * | 1956-02-14 | schlayer | ||
| US2519807A (en) * | 1944-10-10 | 1950-08-22 | Max L Yeater | Ionization pressure gauge |
| US2633486A (en) * | 1950-04-29 | 1953-03-31 | Gen Electric | Apparatus for glow testing sealed envelopes |
| US2725525A (en) * | 1951-03-13 | 1955-11-29 | Westinghouse Electric Corp | Testing apparatus |
| US3153190A (en) * | 1959-12-11 | 1964-10-13 | Rca Corp | Method of testing and controlling the gettering of electron tubes during manufacture |
-
0
- NL NL33136D patent/NL33136C/xx active
-
1931
- 1931-08-07 US US555849A patent/US1917465A/en not_active Expired - Lifetime
- 1931-08-10 FR FR721206D patent/FR721206A/fr not_active Expired
- 1931-08-11 GB GB22729/31A patent/GB375123A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US1917465A (en) | 1933-07-11 |
| GB375123A (en) | 1932-06-23 |
| FR721206A (fr) | 1932-03-01 |