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AU274736B2 - Visual aids - Google Patents
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AU274736B2 - Visual aids - Google Patents

Visual aids

Info

Publication number
AU274736B2
AU274736B2 AU42528/64A AU4252864A AU274736B2 AU 274736 B2 AU274736 B2 AU 274736B2 AU 42528/64 A AU42528/64 A AU 42528/64A AU 4252864 A AU4252864 A AU 4252864A AU 274736 B2 AU274736 B2 AU 274736B2
Authority
AU
Australia
Prior art keywords
visual aids
aids
visual
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
AU42528/64A
Other versions
AU4252864A (en
Inventor
PETER JOHNSON and GEORGE ROBERT LEVITT 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
Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of AU274736B2 publication Critical patent/AU274736B2/en
Publication of AU4252864A publication Critical patent/AU4252864A/en
Expired legal-status Critical Current

Links

AU42528/64A 1964-03-25 Visual aids Expired AU274736B2 (en)

Publications (2)

Publication Number Publication Date
AU274736B2 true AU274736B2 (en) 1965-09-30
AU4252864A AU4252864A (en) 1965-09-30

Family

ID=

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