CA218676A - Vacuum tube apparatus - Google Patents

Vacuum tube apparatus

Info

Publication number
CA218676A
CA218676A CA218676A CA218676DA CA218676A CA 218676 A CA218676 A CA 218676A CA 218676 A CA218676 A CA 218676A CA 218676D A CA218676D A CA 218676DA CA 218676 A CA218676 A CA 218676A
Authority
CA
Canada
Prior art keywords
vacuum tube
tube apparatus
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
CA218676A
Other languages
French (fr)
Inventor
W. Nicholas Harold
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
Application granted granted Critical
Publication of CA218676A publication Critical patent/CA218676A/en
Expired legal-status Critical Current

Links

CA218676A Vacuum tube apparatus Expired CA218676A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA218676T

Publications (1)

Publication Number Publication Date
CA218676A true CA218676A (en) 1922-05-16

Family

ID=35113120

Family Applications (1)

Application Number Title Priority Date Filing Date
CA218676A Expired CA218676A (en) Vacuum tube apparatus

Country Status (1)

Country Link
CA (1) CA218676A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD1095949S1 (en) * 2022-12-22 2025-09-30 Rockvill Inc. Vaporizer cartridge

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD1095949S1 (en) * 2022-12-22 2025-09-30 Rockvill Inc. Vaporizer cartridge

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