AP

Archibald M. Pettigrew

BU Burroughs: 1 patents #265 of 604Top 45%
Overall (All Time): #1,042,623 of 4,157,543Top 30%
5
Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
6615029 Electronic circuits Thomas James Muir 2003-09-02
5341106 Amplitude locked loop circuits 1994-08-23
4499508 Digital magnetic recording 1985-02-12
4376958 Modified frequency modulation 1983-03-15
4370683 Cross-coupled servo control mechanism for reel-to-reel tape drives George H. Greig 1983-01-25