CA320617A - Lampe a vide - Google Patents

Lampe a vide

Info

Publication number
CA320617A
CA320617A CA320617A CA320617DA CA320617A CA 320617 A CA320617 A CA 320617A CA 320617 A CA320617 A CA 320617A CA 320617D A CA320617D A CA 320617DA CA 320617 A CA320617 A CA 320617A
Authority
CA
Canada
Prior art keywords
vacuum tube
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
CA320617A
Other languages
English (en)
Inventor
J. Kayko Charles
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.)
Sparks Withington Co
Original Assignee
Sparks Withington Co
Publication date
Application granted granted Critical
Publication of CA320617A publication Critical patent/CA320617A/fr
Expired legal-status Critical Current

Links

CA320617A Lampe a vide Expired CA320617A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA320617T

Publications (1)

Publication Number Publication Date
CA320617A true CA320617A (fr) 1932-03-15

Family

ID=35281171

Family Applications (1)

Application Number Title Priority Date Filing Date
CA320617A Expired CA320617A (fr) Lampe a vide

Country Status (1)

Country Link
CA (1) CA320617A (fr)

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