A. Steven Ledger

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Addison, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Conveyor support crawler for a mobile conveyor system
- Patent number 6,336,545
- Issue date Jan 8, 2002
- Rotec Industries Inc.
- Bruce Arndt
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Modular truss assembly for a conveyor system
- Patent number 6,276,521
- Issue date Aug 21, 2001
- Rotec Industries Inc.
- Bruce Arndt
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Cantilever conveying techniques
- Patent number 5,203,442
- Issue date Apr 20, 1993
- Rotec Industries, Inc.
- Robert F. Oury
- B28 - WORKING CEMENT, CLAY, OR STONE