NL7204304A - - Google Patents
Info
- Publication number
- NL7204304A NL7204304A NL7204304A NL7204304A NL7204304A NL 7204304 A NL7204304 A NL 7204304A NL 7204304 A NL7204304 A NL 7204304A NL 7204304 A NL7204304 A NL 7204304A NL 7204304 A NL7204304 A NL 7204304A
- Authority
- NL
- Netherlands
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N9/00—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity
- G01N9/002—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity using variation of the resonant frequency of an element vibrating in contact with the material submitted to analysis
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US13113171A | 1971-04-05 | 1971-04-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL7204304A true NL7204304A (https=) | 1972-10-09 |
Family
ID=22448019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL7204304A NL7204304A (https=) | 1971-04-05 | 1972-03-30 |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JPS5223584B1 (https=) |
| DE (1) | DE2215625A1 (https=) |
| FR (1) | FR2132445A1 (https=) |
| IT (1) | IT950940B (https=) |
| NL (1) | NL7204304A (https=) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114062192B (zh) * | 2021-11-11 | 2024-12-31 | 四川泛华航空仪表电器有限公司 | 一种选频增益的变换电路及其工作方法 |
-
1972
- 1972-03-30 NL NL7204304A patent/NL7204304A/xx unknown
- 1972-03-30 DE DE19722215625 patent/DE2215625A1/de active Pending
- 1972-03-31 IT IT2264972A patent/IT950940B/it active
- 1972-04-05 JP JP47034340A patent/JPS5223584B1/ja active Pending
- 1972-04-05 FR FR7211896A patent/FR2132445A1/fr not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| FR2132445A1 (https=) | 1972-11-17 |
| JPS5223584B1 (https=) | 1977-06-25 |
| IT950940B (it) | 1973-06-20 |
| DE2215625A1 (de) | 1972-11-02 |