CA243470A - Dispositif a foyer de lampe - Google Patents

Dispositif a foyer de lampe

Info

Publication number
CA243470A
CA243470A CA243470A CA243470DA CA243470A CA 243470 A CA243470 A CA 243470A CA 243470 A CA243470 A CA 243470A CA 243470D A CA243470D A CA 243470DA CA 243470 A CA243470 A CA 243470A
Authority
CA
Canada
Prior art keywords
focusing device
focusing
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
CA243470A
Other languages
English (en)
Inventor
S. Hamm 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.)
Adams and Westlake Co
Original Assignee
Adams and Westlake Co
Publication date
Application granted granted Critical
Publication of CA243470A publication Critical patent/CA243470A/fr
Expired legal-status Critical Current

Links

CA243470A Dispositif a foyer de lampe Expired CA243470A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA243470T

Publications (1)

Publication Number Publication Date
CA243470A true CA243470A (fr) 1924-10-07

Family

ID=35147497

Family Applications (1)

Application Number Title Priority Date Filing Date
CA243470A Expired CA243470A (fr) Dispositif a foyer de lampe

Country Status (1)

Country Link
CA (1) CA243470A (fr)

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