GB285791A - Improvements in geometrical toys and teaching appliances - Google Patents

Improvements in geometrical toys and teaching appliances

Info

Publication number
GB285791A
GB285791A GB5331/28A GB533128A GB285791A GB 285791 A GB285791 A GB 285791A GB 5331/28 A GB5331/28 A GB 5331/28A GB 533128 A GB533128 A GB 533128A GB 285791 A GB285791 A GB 285791A
Authority
GB
United Kingdom
Prior art keywords
toys
geometrical
teaching appliances
appliances
teaching
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
GB5331/28A
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
Publication of GB285791A publication Critical patent/GB285791A/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
    • G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
    • G09B23/02—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for mathematics
    • G09B23/04—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for mathematics for geometry, trigonometry, projection or perspective
GB5331/28A 1927-02-19 1928-02-20 Improvements in geometrical toys and teaching appliances Expired GB285791A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE285791X 1927-02-19

Publications (1)

Publication Number Publication Date
GB285791A true GB285791A (en) 1928-10-18

Family

ID=6058897

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5331/28A Expired GB285791A (en) 1927-02-19 1928-02-20 Improvements in geometrical toys and teaching appliances

Country Status (1)

Country Link
GB (1) GB285791A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2974425A (en) * 1958-03-03 1961-03-14 Dreiding Andre Molecule demonstrator for stereochemistry

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2974425A (en) * 1958-03-03 1961-03-14 Dreiding Andre Molecule demonstrator for stereochemistry

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