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Inventor

BLUETHGEN BJOERN

DE8 patents
⚠️ This page may combine multiple inventors who share the name “BLUETHGEN BJOERN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

POLYGRAM GMBH

4 patents

PHILIPS CORP

2 patents

POLYGRAM INT HOLDING

1 patent

PHILIPS & DU PONT OPTICAL

1 patent