CA509538A - Instruments or display devices having markings rendered fluorescent by invisible light rays - Google Patents

Instruments or display devices having markings rendered fluorescent by invisible light rays

Info

Publication number
CA509538A
CA509538A CA509538A CA509538DA CA509538A CA 509538 A CA509538 A CA 509538A CA 509538 A CA509538 A CA 509538A CA 509538D A CA509538D A CA 509538DA CA 509538 A CA509538 A CA 509538A
Authority
CA
Canada
Prior art keywords
markings
instruments
display devices
light rays
invisible light
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
CA509538A
Other languages
French (fr)
Inventor
J. S. Russell Victor
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.)
S Smith and Sons England Ltd
Original Assignee
S Smith and Sons England Ltd
Publication date
Application granted granted Critical
Publication of CA509538A publication Critical patent/CA509538A/en
Expired legal-status Critical Current

Links

CA509538A Instruments or display devices having markings rendered fluorescent by invisible light rays Expired CA509538A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA509538T

Publications (1)

Publication Number Publication Date
CA509538A true CA509538A (en) 1955-01-25

Family

ID=35660589

Family Applications (1)

Application Number Title Priority Date Filing Date
CA509538A Expired CA509538A (en) Instruments or display devices having markings rendered fluorescent by invisible light rays

Country Status (1)

Country Link
CA (1) CA509538A (en)

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