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CA826891A - Mechanical focus maintaining apparatus for a slide projector - Google Patents

Mechanical focus maintaining apparatus for a slide projector

Info

Publication number
CA826891A
CA826891A CA826891A CA826891DA CA826891A CA 826891 A CA826891 A CA 826891A CA 826891 A CA826891 A CA 826891A CA 826891D A CA826891D A CA 826891DA CA 826891 A CA826891 A CA 826891A
Authority
CA
Canada
Prior art keywords
slide projector
maintaining apparatus
mechanical focus
focus maintaining
mechanical
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
CA826891A
Inventor
C. Badalich Frank
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.)
Bell and Howell Co
Original Assignee
Bell and Howell Co
Publication date
Application granted granted Critical
Publication of CA826891A publication Critical patent/CA826891A/en
Expired legal-status Critical Current

Links

CA826891A Mechanical focus maintaining apparatus for a slide projector Expired CA826891A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA826891T

Publications (1)

Publication Number Publication Date
CA826891A true CA826891A (en) 1969-11-11

Family

ID=36304332

Family Applications (1)

Application Number Title Priority Date Filing Date
CA826891A Expired CA826891A (en) Mechanical focus maintaining apparatus for a slide projector

Country Status (1)

Country Link
CA (1) CA826891A (en)

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