Inventor
HISSEL LEOPOLD H
NL2 patents
Patents
2 patentsUS4375088AFeb 22, 1983
Optically readable record carrier with track variations which provide clock and tracking signals and apparatus for recording and/or reproducing data from such a record carrier
PHILIPS CORP55 citations92
US4885998ADec 12, 1989
Patient support system for radiotherapy
PHILIPS CORP51 citations90