GB1293605A - Improvements relating to display apparatus suitable for use as a teaching aid - Google Patents

Improvements relating to display apparatus suitable for use as a teaching aid

Info

Publication number
GB1293605A
GB1293605A GB2036969A GB2036969A GB1293605A GB 1293605 A GB1293605 A GB 1293605A GB 2036969 A GB2036969 A GB 2036969A GB 2036969 A GB2036969 A GB 2036969A GB 1293605 A GB1293605 A GB 1293605A
Authority
GB
United Kingdom
Prior art keywords
teaching aid
display apparatus
apparatus suitable
improvements relating
april
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
GB2036969A
Inventor
Audrey Wakefield
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
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to GB2036969A priority Critical patent/GB1293605A/en
Publication of GB1293605A publication Critical patent/GB1293605A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B15/00—Teaching music
    • G09B15/02—Boards or like means for providing an indication of notes
    • G09B15/026—Non-electrically operated

Abstract

1293605 Teaching numbers A WAKEFIELD 13 April 1970 [22 April 1969] 20369/69 Heading G5G A display device for use as a teaching aid comprises a panel 5 provided with slidable shutters 7 each associated with an aperture 6 in the panel each shutter having a number marked thereon and being provided with a projecting finger piece 8 which serves also as a stop by abutment with opposed edges of the associated aperture.
GB2036969A 1969-04-22 1969-04-22 Improvements relating to display apparatus suitable for use as a teaching aid Expired GB1293605A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2036969A GB1293605A (en) 1969-04-22 1969-04-22 Improvements relating to display apparatus suitable for use as a teaching aid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2036969A GB1293605A (en) 1969-04-22 1969-04-22 Improvements relating to display apparatus suitable for use as a teaching aid

Publications (1)

Publication Number Publication Date
GB1293605A true GB1293605A (en) 1972-10-18

Family

ID=10144802

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2036969A Expired GB1293605A (en) 1969-04-22 1969-04-22 Improvements relating to display apparatus suitable for use as a teaching aid

Country Status (1)

Country Link
GB (1) GB1293605A (en)

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees