CA221637A - Traitement des filaments d'ampoules incandescentes - Google Patents

Traitement des filaments d'ampoules incandescentes

Info

Publication number
CA221637A
CA221637A CA221637A CA221637DA CA221637A CA 221637 A CA221637 A CA 221637A CA 221637 A CA221637 A CA 221637A CA 221637D A CA221637D A CA 221637DA CA 221637 A CA221637 A CA 221637A
Authority
CA
Canada
Prior art keywords
filaments
treatment
incandescent lamps
incandescent
lamps
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
CA221637A
Other languages
English (en)
Inventor
Humphreys Ramage John
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.)
Westinghouse Canada Inc
Original Assignee
Canadian Westinghouse Co Ltd
Publication date
Application granted granted Critical
Publication of CA221637A publication Critical patent/CA221637A/fr
Expired legal-status Critical Current

Links

CA221637A Traitement des filaments d'ampoules incandescentes Expired CA221637A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA221637T

Publications (1)

Publication Number Publication Date
CA221637A true CA221637A (fr) 1922-08-01

Family

ID=35117239

Family Applications (1)

Application Number Title Priority Date Filing Date
CA221637A Expired CA221637A (fr) Traitement des filaments d'ampoules incandescentes

Country Status (1)

Country Link
CA (1) CA221637A (fr)

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