CA304316A - Appareil de projection, de reduction et d'agrandissement - Google Patents

Appareil de projection, de reduction et d'agrandissement

Info

Publication number
CA304316A
CA304316A CA304316A CA304316DA CA304316A CA 304316 A CA304316 A CA 304316A CA 304316 A CA304316 A CA 304316A CA 304316D A CA304316D A CA 304316DA CA 304316 A CA304316 A CA 304316A
Authority
CA
Canada
Prior art keywords
projecting
reducing
enlarging apparatus
enlarging
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
CA304316A
Other languages
English (en)
Inventor
Abrams Joseph
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.)
Individual
Original Assignee
Individual
Publication date
Application granted granted Critical
Publication of CA304316A publication Critical patent/CA304316A/fr
Expired legal-status Critical Current

Links

CA304316A Appareil de projection, de reduction et d'agrandissement Expired CA304316A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA304316T

Publications (1)

Publication Number Publication Date
CA304316A true CA304316A (fr) 1930-09-30

Family

ID=35257462

Family Applications (1)

Application Number Title Priority Date Filing Date
CA304316A Expired CA304316A (fr) Appareil de projection, de reduction et d'agrandissement

Country Status (1)

Country Link
CA (1) CA304316A (fr)

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