CA854919A - Notched card for teaching machine - Google Patents

Notched card for teaching machine

Info

Publication number
CA854919A
CA854919A CA854919A CA854919DA CA854919A CA 854919 A CA854919 A CA 854919A CA 854919 A CA854919 A CA 854919A CA 854919D A CA854919D A CA 854919DA CA 854919 A CA854919 A CA 854919A
Authority
CA
Canada
Prior art keywords
teaching machine
notched card
notched
card
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
CA854919A
Inventor
M. Davidson Richard
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.)
Bell and Howell Co
Original Assignee
Bell and Howell Co
Publication date
Application granted granted Critical
Publication of CA854919A publication Critical patent/CA854919A/en
Expired legal-status Critical Current

Links

CA854919A Notched card for teaching machine Expired CA854919A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA854919T

Publications (1)

Publication Number Publication Date
CA854919A true CA854919A (en) 1970-11-03

Family

ID=36340501

Family Applications (1)

Application Number Title Priority Date Filing Date
CA854919A Expired CA854919A (en) Notched card for teaching machine

Country Status (1)

Country Link
CA (1) CA854919A (en)

Similar Documents

Publication Publication Date Title
CA952005A (en) Rectangular-duct forming machine
CA926010A (en) Teaching machines
AU459611B2 (en) Woodturning machine
CA944043A (en) Rotating-screen printing machine
CA957084A (en) Continuous-rod making machines
CA854919A (en) Notched card for teaching machine
CA845374A (en) Notched card for teaching machine
CA959513A (en) Tree-harvesting machine
AU3001371A (en) Business machines
CA835037A (en) Teaching machines
CA926115A (en) Teaching machine
CA852926A (en) Learning machine
AU1212270A (en) Teaching machine
CA846983A (en) Record card machine
CA941156A (en) Hand held teaching machine
CA844419A (en) Vending machine
AU1501670A (en) Bending machine
CA848810A (en) Wire-stranding machines
CA835192A (en) Vending machines
CA857151A (en) Voting machine
CA839523A (en) Line marking machines
CA840417A (en) Carbonator for drink-dispensing machine
CA849827A (en) Machine de compactage et de liage de couronnes
AU422075B2 (en) Slot machine
CA844326A (en) Printing machines