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CA248811A - Tube a vide - Google Patents

Tube a vide

Info

Publication number
CA248811A
CA248811A CA248811A CA248811DA CA248811A CA 248811 A CA248811 A CA 248811A CA 248811 A CA248811 A CA 248811A CA 248811D A CA248811D A CA 248811DA CA 248811 A CA248811 A CA 248811A
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
CA248811A
Other languages
English (en)
Inventor
Yeoman Robinson Ernest
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 CA248811A publication Critical patent/CA248811A/fr
Expired legal-status Critical Current

Links

CA248811A Tube a vide Expired CA248811A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA248811T

Publications (1)

Publication Number Publication Date
CA248811A true CA248811A (fr) 1925-04-21

Family

ID=35155785

Family Applications (1)

Application Number Title Priority Date Filing Date
CA248811A Expired CA248811A (fr) Tube a vide

Country Status (1)

Country Link
CA (1) CA248811A (fr)

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