Jan C. Wozniak

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Thorneville, GB

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Patents Grantslast 30 patents

Information Patent Grant
Shoring supports
- Patent number 4,464,084
- Issue date Aug 7, 1984
- Serni Limited
- Jan C. Wozniak
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information Patent Grant
Rail sleepers with rail clamping devices
- Patent number 4,448,349
- Issue date May 15, 1984
- Serni Limited
- Jan C. Wozniak
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES