Donald J. Harvan

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Durham, NC, US

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Patents Grantslast 30 patents

Information Patent Grant
Time release delivery system
- Patent number 6,004,572
- Issue date Dec 21, 1999
- Triangle Laboratories, Inc.
- Donald J. Harvan
- B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...