CA273336A - Projecteur d'enseigne optique - Google Patents

Projecteur d'enseigne optique

Info

Publication number
CA273336A
CA273336A CA273336A CA273336DA CA273336A CA 273336 A CA273336 A CA 273336A CA 273336 A CA273336 A CA 273336A CA 273336D A CA273336D A CA 273336DA CA 273336 A CA273336 A CA 273336A
Authority
CA
Canada
Prior art keywords
optical sign
sign projector
projector
optical
sign
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
CA273336A
Other languages
English (en)
Inventor
William Arthur Alder
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.)
INTERNATIONAL SKYWRITERS Ltd
Original Assignee
INTERNATIONAL SKYWRITERS Ltd
Publication date
Application granted granted Critical
Publication of CA273336A publication Critical patent/CA273336A/fr
Expired legal-status Critical Current

Links

CA273336A Projecteur d'enseigne optique Expired CA273336A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA273336T

Publications (1)

Publication Number Publication Date
CA273336A true CA273336A (fr) 1927-08-23

Family

ID=35203368

Family Applications (1)

Application Number Title Priority Date Filing Date
CA273336A Expired CA273336A (fr) Projecteur d'enseigne optique

Country Status (1)

Country Link
CA (1) CA273336A (fr)

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