AS

Arthur H. Schimmelman

PD Precision Dynamics: 2 patents #22 of 73Top 35%
Overall (All Time): #2,371,478 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
4285146 Tamper-resistant identification device Stanley E. Charles, Donald A. Long 1981-08-25
4221063 Tamper-resistant identification device Stanley E. Charles, Donald A. Long 1980-09-09