CA434364A - Appareil optique a lecture d'echelle - Google Patents

Appareil optique a lecture d'echelle

Info

Publication number
CA434364A
CA434364A CA434364A CA434364DA CA434364A CA 434364 A CA434364 A CA 434364A CA 434364 A CA434364 A CA 434364A CA 434364D A CA434364D A CA 434364DA CA 434364 A CA434364 A CA 434364A
Authority
CA
Canada
Prior art keywords
reading apparatus
optical scale
scale
optical
reading
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
CA434364A
Other languages
English (en)
Inventor
William Clifford Thomas
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.)
Kapella Ltd
Original Assignee
Kapella Ltd
Publication date
Application granted granted Critical
Publication of CA434364A publication Critical patent/CA434364A/fr
Expired legal-status Critical Current

Links

CA434364A Appareil optique a lecture d'echelle Expired CA434364A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA434364T

Publications (1)

Publication Number Publication Date
CA434364A true CA434364A (fr) 1946-04-23

Family

ID=35548992

Family Applications (1)

Application Number Title Priority Date Filing Date
CA434364A Expired CA434364A (fr) Appareil optique a lecture d'echelle

Country Status (1)

Country Link
CA (1) CA434364A (fr)

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