CA290507A - Systeme de lampe a vide - Google Patents

Systeme de lampe a vide

Info

Publication number
CA290507A
CA290507A CA290507A CA290507DA CA290507A CA 290507 A CA290507 A CA 290507A CA 290507 A CA290507 A CA 290507A CA 290507D A CA290507D A CA 290507DA CA 290507 A CA290507 A CA 290507A
Authority
CA
Canada
Prior art keywords
vacuum tube
tube system
vacuum
tube
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
CA290507A
Other languages
English (en)
Inventor
August Kolster Frederick
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.)
Individual
Original Assignee
Individual
Publication date
Application granted granted Critical
Publication of CA290507A publication Critical patent/CA290507A/fr
Expired legal-status Critical Current

Links

CA290507A Systeme de lampe a vide Expired CA290507A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA290507T

Publications (1)

Publication Number Publication Date
CA290507A true CA290507A (fr) 1929-06-18

Family

ID=35227319

Family Applications (1)

Application Number Title Priority Date Filing Date
CA290507A Expired CA290507A (fr) Systeme de lampe a vide

Country Status (1)

Country Link
CA (1) CA290507A (fr)

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