BE727307A - - Google Patents
Info
- Publication number
- BE727307A BE727307A BE727307DA BE727307A BE 727307 A BE727307 A BE 727307A BE 727307D A BE727307D A BE 727307DA BE 727307 A BE727307 A BE 727307A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
- H03H9/30—Time-delay networks
- H03H9/36—Time-delay networks with non-adjustable delay time
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S181/00—Acoustics
- Y10S181/40—Wave coupling
Landscapes
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
- Optical Integrated Circuits (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US72650868A | 1968-05-03 | 1968-05-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE727307A true BE727307A (US06229276-20010508-P00022.png) | 1969-07-01 |
Family
ID=24918903
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE727307D BE727307A (US06229276-20010508-P00022.png) | 1968-05-03 | 1969-01-23 |
Country Status (8)
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5152366A (en) * | 1991-03-28 | 1992-10-06 | The United States Of America As Represented By The Secretary Of The Navy | Sound absorbing muffler |
| US8065108B2 (en) * | 2009-02-03 | 2011-11-22 | Northrop Grumman Guidance And Electronics Company, Inc. | Systems and methods for measuring at least one thermal property of materials based on a thermal brewster angle |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2624852A (en) * | 1946-03-04 | 1953-01-06 | Forbes Gordon Donald | Backing for delay line crystals |
| US3383631A (en) * | 1965-09-16 | 1968-05-14 | Zenith Radio Corp | Acoustic impedance matching |
-
1968
- 1968-05-03 US US726508A patent/US3483942A/en not_active Expired - Lifetime
-
1969
- 1969-01-23 BE BE727307D patent/BE727307A/xx unknown
- 1969-04-25 SE SE05907/69A patent/SE332527B/xx unknown
- 1969-04-28 FR FR6913478A patent/FR2007741A1/fr not_active Withdrawn
- 1969-04-28 NL NL6906524A patent/NL6906524A/xx unknown
- 1969-04-29 DE DE19691921718 patent/DE1921718A1/de active Pending
- 1969-05-01 GB GB1258630D patent/GB1258630A/en not_active Expired
- 1969-05-02 CH CH676269A patent/CH500550A/de not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| GB1258630A (US06229276-20010508-P00022.png) | 1971-12-30 |
| NL6906524A (US06229276-20010508-P00022.png) | 1969-11-05 |
| FR2007741A1 (US06229276-20010508-P00022.png) | 1970-01-09 |
| DE1921718A1 (de) | 1969-11-20 |
| US3483942A (en) | 1969-12-16 |
| CH500550A (de) | 1970-12-15 |
| SE332527B (US06229276-20010508-P00022.png) | 1971-02-08 |
