-
-
-
-
-
-
-
Railway wheel sensors
-
Patent number 5,129,606
-
Issue date Jul 14, 1992
-
JDR Systems Corporation
-
James D. Rodems
-
B61 - RAILWAYS
-
-
-
-
-
Magnetic object detection
-
Patent number 3,964,703
-
Issue date Jun 22, 1976
-
Computer Identics Corporation
-
Joseph R. Wilkas
-
B61 - RAILWAYS
-
3721821
-
Patent number 3,721,821
-
Issue date Mar 20, 1973
-
G01 - MEASURING TESTING
-
3721859
-
Patent number 3,721,859
-
Issue date Mar 20, 1973
-
G01 - MEASURING TESTING
-
3396271
-
Patent number 3,396,271
-
Issue date Aug 6, 1968
-
B61 - RAILWAYS
-
3395341
-
Patent number 3,395,341
-
Issue date Jul 30, 1968
-
B61 - RAILWAYS
-
3392279
-
Patent number 3,392,279
-
Issue date Jul 9, 1968
-
B61 - RAILWAYS
-
3359417
-
Patent number 3,359,417
-
Issue date Dec 19, 1967
-
B61 - RAILWAYS
-
3230389
-
Patent number 3,230,389
-
Issue date Jan 18, 1966
-
H03 - BASIC ELECTRONIC CIRCUITRY
-
3210539
-
Patent number 3,210,539
-
Issue date Oct 5, 1965
-
G01 - MEASURING TESTING
-
3205352
-
Patent number 3,205,352
-
Issue date Sep 7, 1965
-
G08 - SIGNALLING
-
3189885
-
Patent number 3,189,885
-
Issue date Jun 15, 1965
-
B61 - RAILWAYS
-
3161387
-
Patent number 3,161,387
-
Issue date Dec 15, 1964
-
B61 - RAILWAYS
-
3129335
-
Patent number 3,129,335
-
Issue date Apr 14, 1964
-
E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
-
2973430
-
Patent number 2,973,430
-
Issue date Feb 28, 1961
-
B61 - RAILWAYS
-
2892078
-
Patent number 2,892,078
-
Issue date Jun 23, 1959
-
B61 - RAILWAYS
-
2779583
-
Patent number 2,779,583
-
Issue date Jan 29, 1957
-
B61 - RAILWAYS
-
2429266
-
Patent number 2,429,266
-
Issue date Oct 21, 1947
-
B61 - RAILWAYS
-
1020520
-
Patent number 1,020,520
-
Issue date Mar 19, 1912
-
B61 - RAILWAYS
-
709865
-
Patent number 709,865
-
Issue date Sep 30, 1902
-
B61 - RAILWAYS