CA213257A - Moyens de production d'illusion d'optique - Google Patents

Moyens de production d'illusion d'optique

Info

Publication number
CA213257A
CA213257A CA213257A CA213257DA CA213257A CA 213257 A CA213257 A CA 213257A CA 213257 A CA213257 A CA 213257A CA 213257D A CA213257D A CA 213257DA CA 213257 A CA213257 A CA 213257A
Authority
CA
Canada
Prior art keywords
producing
optical illusion
illusion
optical
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
CA213257A
Other languages
English (en)
Inventor
Thomas Tibbles Percy
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 CA213257A publication Critical patent/CA213257A/fr
Expired legal-status Critical Current

Links

CA213257A Moyens de production d'illusion d'optique Expired CA213257A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA213257T

Publications (1)

Publication Number Publication Date
CA213257A true CA213257A (fr) 1921-09-06

Family

ID=35107701

Family Applications (1)

Application Number Title Priority Date Filing Date
CA213257A Expired CA213257A (fr) Moyens de production d'illusion d'optique

Country Status (1)

Country Link
CA (1) CA213257A (fr)

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