Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
CA605583A
Inventor
Reifenschweiler Otto
H. M. Schenkelaars Martinus
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
Publication date
Application grantedgrantedCritical
Publication of CA605583ApublicationCriticalpatent/CA605583A/en