Assignee

POLY DISC SYSTEMS INC

2 granted patents·66 citations·filing 1974–1978

Technology mixG11B2 Y10S2 Y10T2 H01F1

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2 records

0185US4124736ASurface protected magnetic recording membersPOLY DISC SYSTEMS INC·Filed 1974·Granted Nov 7, 1978·33 cites·8 claims
0274US4224381AAbrasion resistant magnetic record membersPOLY DISC SYSTEMS INC·Filed 1978·Granted Sep 23, 1980·33 cites·15 claims

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