Willard L. Geiger

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Chagrin Falls, OH, US

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Patents Grantslast 30 patents

Information Patent Grant
Train approach detector
- Patent number 4,365,777
- Issue date Dec 28, 1982
- Modern Industries Signal Equipment, Inc.
- Willard L. Geiger
- B61 - RAILWAYS
Information Patent Grant
Variable high pass coupler
- Patent number 4,026,505
- Issue date May 31, 1977
- Harmon Industries, Inc.
- Willard L. Geiger
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Railway signal system
- Patent number 3,987,989
- Issue date Oct 26, 1976
- Erico Rail Products Company
- Willard L. Geiger
- B61 - RAILWAYS
Information Patent Grant
Railroad motion detecting and signalling system with repeater receiver
- Patent number 3,974,991
- Issue date Aug 17, 1976
- Erico Rail Products Company
- Willard L. Geiger
- B61 - RAILWAYS