GB8725266D0 - Instrument for multiplication - Google Patents

Instrument for multiplication

Info

Publication number: GB8725266D0
Authority: GB; United Kingdom
Prior art keywords: multiplication; instrument
Prior art date: 1986-10-28
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.): Granted

Application number

GB878725266A

Other versions

GB2197521A (en

GB2197521B (en

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.)

Kawai Musical Instrument Manufacturing Co Ltd

Original Assignee

Kawai Musical Instrument Manufacturing Co Ltd

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.)

1986-10-28

Filing date

1987-10-28

Publication date

1987-12-02

1986-10-28 Priority claimed from JP25477086A external-priority patent/JPS63109490A/en

1986-11-19 Priority claimed from JP27415386A external-priority patent/JPS63128391A/en

1987-10-28 Application filed by Kawai Musical Instrument Manufacturing Co Ltd filed Critical Kawai Musical Instrument Manufacturing Co Ltd

1987-12-02 Publication of GB8725266D0 publication Critical patent/GB8725266D0/en

1988-05-18 Publication of GB2197521A publication Critical patent/GB2197521A/en

1990-07-25 Application granted granted Critical

1990-07-25 Publication of GB2197521B publication Critical patent/GB2197521B/en

2007-10-28 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

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
- 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
- G09B19/00—Teaching not covered by other main groups of this subclass
- G09B19/02—Counting; Calculating

Landscapes

General Physics & Mathematics (AREA)
Physics & Mathematics (AREA)
Engineering & Computer Science (AREA)
Business, Economics & Management (AREA)
Mathematical Optimization (AREA)
Educational Technology (AREA)
Computational Mathematics (AREA)
Educational Administration (AREA)
Mathematical Analysis (AREA)
Theoretical Computer Science (AREA)
Mathematical Physics (AREA)
Pure & Applied Mathematics (AREA)
Entrepreneurship & Innovation (AREA)
Algebra (AREA)
Toys (AREA)

GB8725266A 1986-10-28 1987-10-28 Instrument for practising multiplication Expired - Lifetime GB2197521B (en)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
JP25477086A JPS63109490A (en)	1986-10-28	1986-10-28	Multiplication instructing apparatus
JP27415386A JPS63128391A (en)	1986-11-19	1986-11-19	Multiplication instructing apparatus

Publications (3)

Publication Number	Publication Date
GB8725266D0 true GB8725266D0 (en)	1987-12-02
GB2197521A GB2197521A (en)	1988-05-18
GB2197521B GB2197521B (en)	1990-07-25

Family

ID=26541837

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
GB8725266A Expired - Lifetime GB2197521B (en)	1986-10-28	1987-10-28	Instrument for practising multiplication

Country Status (1)

Country	Link
GB (1)	GB2197521B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US6077079A (en) *	1998-05-22	2000-06-20	Barnes; Latrell	Dual-teaching-aid game

1987
- 1987-10-28 GB GB8725266A patent/GB2197521B/en not_active Expired - Lifetime

Also Published As

Publication number	Publication date
GB2197521A (en)	1988-05-18
GB2197521B (en)	1990-07-25

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Legal Events

Date	Code	Title	Description
1996-06-26	PCNP	Patent ceased through non-payment of renewal fee	Effective date: 19951028