BG18629A3 - - Google Patents
Info
- Publication number
- BG18629A3 BG18629A3 BG1504870A BG1504870A BG18629A3 BG 18629 A3 BG18629 A3 BG 18629A3 BG 1504870 A BG1504870 A BG 1504870A BG 1504870 A BG1504870 A BG 1504870A BG 18629 A3 BG18629 A3 BG 18629A3
- Authority
- BG
- Bulgaria
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/22—Details, e.g. general constructional or apparatus details
- G01N29/223—Supports, positioning or alignment in fixed situation
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H7/00—Measuring reverberation time ; room acoustic measurements
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DD14395669A DD94900A1 (de) | 1969-11-27 | 1969-11-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BG18629A3 true BG18629A3 (de) | 1975-02-25 |
Family
ID=5481872
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BG1504870A BG18629A3 (de) | 1969-11-27 | 1970-06-30 |
Country Status (6)
| Country | Link |
|---|---|
| AT (1) | AT307072B (de) |
| BG (1) | BG18629A3 (de) |
| DD (1) | DD94900A1 (de) |
| DE (1) | DE2030175A1 (de) |
| FR (1) | FR2068678B1 (de) |
| SU (1) | SU508237A3 (de) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1907712A (en) * | 1932-03-11 | 1933-05-09 | Bell Telephone Labor Inc | Acoustic device |
| NL96598C (de) * | 1954-12-16 |
-
1969
- 1969-11-27 DD DD14395669A patent/DD94900A1/xx unknown
-
1970
- 1970-06-19 DE DE19702030175 patent/DE2030175A1/de active Pending
- 1970-06-30 BG BG1504870A patent/BG18629A3/xx unknown
- 1970-07-13 SU SU1459759A patent/SU508237A3/ru active
- 1970-08-11 AT ATA7322/70A patent/AT307072B/de not_active IP Right Cessation
- 1970-09-07 FR FR7032449A patent/FR2068678B1/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DD94900A1 (de) | 1973-01-12 |
| FR2068678B1 (de) | 1974-07-12 |
| FR2068678A1 (de) | 1971-08-27 |
| SU508237A3 (ru) | 1976-03-25 |
| AT307072B (de) | 1973-03-15 |
| DE2030175A1 (de) | 1971-06-09 |