CA478677A - Visual instruction devices - Google Patents

Visual instruction devices

Info

Publication number
CA478677A
CA478677A CA478677A CA478677DA CA478677A CA 478677 A CA478677 A CA 478677A CA 478677 A CA478677 A CA 478677A CA 478677D A CA478677D A CA 478677DA CA 478677 A CA478677 A CA 478677A
Authority
CA
Canada
Prior art keywords
visual instruction
instruction devices
devices
visual
instruction
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
CA478677A
Other languages
French (fr)
Inventor
Howse Pierce Edith
M. Schantz Edwin
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.)
AUDISCOPE Corp
Original Assignee
AUDISCOPE Corp
Publication date
Application granted granted Critical
Publication of CA478677A publication Critical patent/CA478677A/en
Expired legal-status Critical Current

Links

CA478677A Visual instruction devices Expired CA478677A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA478677T

Publications (1)

Publication Number Publication Date
CA478677A true CA478677A (en) 1951-11-20

Family

ID=35618336

Family Applications (1)

Application Number Title Priority Date Filing Date
CA478677A Expired CA478677A (en) Visual instruction devices

Country Status (1)

Country Link
CA (1) CA478677A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6709273B2 (en) 1999-10-15 2004-03-23 Jeffrey Stark Electronic keyboard instructor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6709273B2 (en) 1999-10-15 2004-03-23 Jeffrey Stark Electronic keyboard instructor

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