CA208245A - Tube a vide - Google Patents

Tube a vide

Info

Publication number
CA208245A
CA208245A CA208245A CA208245DA CA208245A CA 208245 A CA208245 A CA 208245A CA 208245 A CA208245 A CA 208245A CA 208245D A CA208245D A CA 208245DA CA 208245 A CA208245 A CA 208245A
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
CA208245A
Other languages
English (en)
Inventor
P. Cioffi Paul
A. Knoop William
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.)
INTERNATIONAL WESTERN ELECTRIC CO
AT&T Corp
Original Assignee
INTERNATIONAL WESTERN ELECTRIC CO
Western Electric Co Inc
Publication date
Application granted granted Critical
Publication of CA208245A publication Critical patent/CA208245A/fr
Expired legal-status Critical Current

Links

CA208245A Tube a vide Expired CA208245A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA208245T

Publications (1)

Publication Number Publication Date
CA208245A true CA208245A (fr) 1921-02-01

Family

ID=35102024

Family Applications (1)

Application Number Title Priority Date Filing Date
CA208245A Expired CA208245A (fr) Tube a vide

Country Status (1)

Country Link
CA (1) CA208245A (fr)

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