GB1234146A - - Google Patents

Info

Publication number
GB1234146A
GB1234146A GB1234146DA GB1234146A GB 1234146 A GB1234146 A GB 1234146A GB 1234146D A GB1234146D A GB 1234146DA GB 1234146 A GB1234146 A GB 1234146A
Authority
GB
United Kingdom
Prior art keywords
stop
holes
symbols
inner member
handicapped persons
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
Other languages
English (en)
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 filed Critical
Publication of GB1234146A publication Critical patent/GB1234146A/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
    • G09B21/00—Teaching, or communicating with, the blind, deaf or mute

Landscapes

  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Physics & Mathematics (AREA)
  • Educational Administration (AREA)
  • Educational Technology (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Input From Keyboards Or The Like (AREA)
GB1234146D 1969-11-14 1969-11-14 Expired GB1234146A (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5578169 1969-11-14

Publications (1)

Publication Number Publication Date
GB1234146A true GB1234146A (enrdf_load_stackoverflow) 1971-06-03

Family

ID=10474863

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1234146D Expired GB1234146A (enrdf_load_stackoverflow) 1969-11-14 1969-11-14

Country Status (1)

Country Link
GB (1) GB1234146A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD276054S (en) 1982-06-04 1984-10-23 Pitts Laval M Paralytic communication board

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD276054S (en) 1982-06-04 1984-10-23 Pitts Laval M Paralytic communication board

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Legal Events

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