CA415783A - Educational device - Google Patents

Educational device

Info

Publication number: CA415783A
Authority: CA; Canada
Prior art keywords: educational device; educational
Prior art date: 1943-10-12
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

CA415783A

Other languages

French (fr)

Inventor

B. Johnson Reynold

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.)

International Business Machines Corp

Original Assignee

International Business Machines Corp

Publication date

1943-10-12

1943-10-12 Application granted granted Critical

1943-10-12 Publication of CA415783A publication Critical patent/CA415783A/en

Status Expired legal-status Critical Current

Links

CA415783A Educational device Expired CA415783A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
CA415783T

Publications (1)

Publication Number	Publication Date
CA415783A true CA415783A (en)	1943-10-12

Family

ID=35524997

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA415783A Expired CA415783A (en)			Educational device

Country Status (1)

Country	Link
CA (1)	CA415783A (en)

0
- CA CA415783A patent/CA415783A/en not_active Expired

Similar Documents

Publication	Publication Date	Title
CA415783A (en)	1943-10-12	Educational device
AU118898B2 (en)	1944-09-21	Platen-levelling device
CA412406A (en)	1943-05-11	Vapour-electric device
CA411360A (en)	1943-03-23	Object representation device
CA415630A (en)	1943-10-05	Connecting device
CA415832A (en)	1943-10-12	Mathematical device
CA410404A (en)	1943-02-02	Advertising device
AU876243A (en)	1944-09-21	Platen-levelling device
CA414999A (en)	1943-09-07	Display device
CA415975A (en)	1943-10-26	Training apparatus
CA415430A (en)	1943-09-28	Median device
CA414449A (en)	1943-08-10	Novelty display device
CA414456A (en)	1943-08-10	Weight-registering apparatus
CA410765A (en)	1943-02-23	Rheostat device
CA416239A (en)	1943-11-09	Physical culture device
CA412670A (en)	1943-05-25	Traction device
CA410912A (en)	1943-03-02	Character transmitting device
CA410511A (en)	1943-02-09	Timing device
CA414051A (en)	1943-07-20	Timing device
CA410408A (en)	1943-02-02	Illuminating device
CA416238A (en)	1943-11-09	Illuminating device
CA410184A (en)	1943-01-26	Tractor device
CA416146A (en)	1943-11-02	Can assembling apparatus
CA410547A (en)	1943-02-09	Exerciser
CA417087A (en)	1943-12-14	Key-carrying device