Hartkorn; Alfred
Patent Applications and Registrations
Patent applications and USPTO patent grants for Hartkorn; Alfred.The latest application filed is for "joint bridging construction for structures".
- Hartkorn; Alfred - D-8068 Pfaffenhofen DE
| Patent | Date |
|---|---|
| Joint bridging construction for structures Grant 4,773,791 - Hartkorn September 27, 1 | 1988-09-27 |
| Joint spanning construction for bridges or similar structures Grant 4,637,085 - Hartkorn January 20, 1 | 1987-01-20 |
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