CA402997A - Direct current changing apparatus - Google Patents

Direct current changing apparatus

Info

Publication number
CA402997A
CA402997A CA402997A CA402997DA CA402997A CA 402997 A CA402997 A CA 402997A CA 402997 A CA402997 A CA 402997A CA 402997D A CA402997D A CA 402997DA CA 402997 A CA402997 A CA 402997A
Authority
CA
Canada
Prior art keywords
direct current
changing apparatus
current changing
direct
current
Prior art date
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
CA402997A
Other languages
French (fr)
Inventor
Willem Alexander Johan
Kuperus Jan
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 granted granted Critical
Publication of CA402997A publication Critical patent/CA402997A/en
Expired legal-status Critical Current

Links

CA402997A Direct current changing apparatus Expired CA402997A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA402997T

Publications (1)

Publication Number Publication Date
CA402997A true CA402997A (en) 1942-02-17

Family

ID=35413444

Family Applications (1)

Application Number Title Priority Date Filing Date
CA402997A Expired CA402997A (en) Direct current changing apparatus

Country Status (1)

Country Link
CA (1) CA402997A (en)

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