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HK1078351B - 用於一种视听简报之悬吊式投影器 - Google Patents

用於一种视听简报之悬吊式投影器 Download PDF

Info

Publication number
HK1078351B
HK1078351B HK05112033.9A HK05112033A HK1078351B HK 1078351 B HK1078351 B HK 1078351B HK 05112033 A HK05112033 A HK 05112033A HK 1078351 B HK1078351 B HK 1078351B
Authority
HK
Hong Kong
Prior art keywords
overhead projector
projector
time tracking
tracking device
display
Prior art date
Application number
HK05112033.9A
Other languages
German (de)
English (en)
French (fr)
Other versions
HK1078351A1 (zh
Inventor
Michael Morykwas
Phillip R. Merkey
Original Assignee
Michael Morykwas
Phillip R. Merkey
Filing date
Publication date
Application filed by Michael Morykwas, Phillip R. Merkey filed Critical Michael Morykwas
Priority claimed from PCT/US2002/032014 external-priority patent/WO2004034157A1/en
Publication of HK1078351A1 publication Critical patent/HK1078351A1/zh
Publication of HK1078351B publication Critical patent/HK1078351B/zh

Links

HK05112033.9A 2002-10-07 用於一种视听简报之悬吊式投影器 HK1078351B (zh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2002/032014 WO2004034157A1 (en) 2002-10-07 2002-10-07 Timer device for use in an audio/visual presentation

Publications (2)

Publication Number Publication Date
HK1078351A1 HK1078351A1 (zh) 2006-03-10
HK1078351B true HK1078351B (zh) 2011-11-25

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