FR956774A - - Google Patents
Info
- Publication number
- FR956774A FR956774A FR956774DA FR956774A FR 956774 A FR956774 A FR 956774A FR 956774D A FR956774D A FR 956774DA FR 956774 A FR956774 A FR 956774A
- 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
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/042—Detecting movement of traffic to be counted or controlled using inductive or magnetic detectors
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Geophysics And Detection Of Objects (AREA)
- Traffic Control Systems (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US536129A US2441554A (en) | 1944-05-18 | 1944-05-18 | Traffic detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR956774A true FR956774A (en) | 1950-02-07 |
Family
ID=24137275
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR956774D Expired FR956774A (en) | 1944-05-18 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US2441554A (en) |
| FR (1) | FR956774A (en) |
| GB (1) | GB607868A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2496031A (en) * | 1947-12-30 | 1950-01-31 | Rca Corp | Dual microphone sound detector system |
| US2532231A (en) * | 1949-05-21 | 1950-11-28 | Streeter Amet Co | Traffic detector |
| US3798743A (en) * | 1972-03-09 | 1974-03-26 | E Griswold | Method of installing photoelectric cell in a driveway |
| US4943805A (en) * | 1986-11-13 | 1990-07-24 | Dennison James L | Conduit-enclosed induction loop for a vehicle detector |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1062361A (en) * | 1906-01-03 | 1913-05-20 | Malcolm P Ryder | Generator of intermittent electric currents. |
| US2014410A (en) * | 1927-01-03 | 1935-09-17 | George W Pierce | Electromagnetostrictive vibrator |
| US1992214A (en) * | 1928-11-12 | 1935-02-26 | Katz David | Traffic detector |
| US2064882A (en) * | 1931-05-21 | 1936-12-22 | Henry B Brainerd | Traffic signal control |
| US2166090A (en) * | 1935-08-03 | 1939-07-11 | Cooper Benjamin | Treadle controlled system |
| US2119811A (en) * | 1935-08-20 | 1938-06-07 | Frank D Hayes | Resilient induction magnet |
| BE424877A (en) * | 1937-02-06 | |||
| US2201146A (en) * | 1937-08-14 | 1940-05-21 | Automatic Signal Corp | Traffic detector |
-
0
- FR FR956774D patent/FR956774A/fr not_active Expired
-
1944
- 1944-05-18 US US536129A patent/US2441554A/en not_active Expired - Lifetime
-
1945
- 1945-06-08 GB GB14617/45A patent/GB607868A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB607868A (en) | 1948-09-07 |
| US2441554A (en) | 1948-05-18 |