MA

Masajiro Akuta

OC Oki Electric Industry Co.: 1 patents #1,459 of 2,807Top 55%
Overall (All Time): #4,059,168 of 4,157,543Top 100%
1
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Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4409438 Ringing control circuit in a telephone switching system — 1983-10-11