CA209345A - Tube-vacuum - Google Patents

Tube-vacuum

Info

Publication number: CA209345A
Authority: CA; Canada
Prior art keywords: vacuum tube; vacuum; tube
Prior art date: 1921-03-08
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

CA209345A

Other languages

English (en)

Inventor

Ferris Hendry 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

Original Assignee

INTERNATIONAL WESTERN ELECTRIC CO

Publication date

1921-03-08

1921-03-08 Application granted granted Critical

1921-03-08 Publication of CA209345A publication Critical patent/CA209345A/fr

Status Expired legal-status Critical Current

Links

CA209345A Tube-vacuum Expired CA209345A (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
CA209345T

Publications (1)

Publication Number	Publication Date
CA209345A true CA209345A (fr)	1921-03-08

Family

ID=35103124

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA209345A Expired CA209345A (fr)			Tube-vacuum

Country Status (1)

Country	Link
CA (1)	CA209345A (fr)

0
- CA CA209345A patent/CA209345A/fr not_active Expired

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