GB523710A - Improvements in or relating to machines for selecting record cards from a file of cards - Google Patents

Improvements in or relating to machines for selecting record cards from a file of cards

Info

Publication number
GB523710A
GB523710A GB24203/39A GB2420339A GB523710A GB 523710 A GB523710 A GB 523710A GB 24203/39 A GB24203/39 A GB 24203/39A GB 2420339 A GB2420339 A GB 2420339A GB 523710 A GB523710 A GB 523710A
Authority
GB
United Kingdom
Prior art keywords
cards
file
machine
relating
machines
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
GB24203/39A
Other languages
English (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.)
British Tabulating Machine Co Ltd
Original Assignee
British Tabulating Machine 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.)
Filing date
Publication date
Application filed by British Tabulating Machine Co Ltd filed Critical British Tabulating Machine Co Ltd
Publication of GB523710A publication Critical patent/GB523710A/en
Expired legal-status Critical Current

Links

Landscapes

  • Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
  • Collation Of Sheets And Webs (AREA)
  • Management, Administration, Business Operations System, And Electronic Commerce (AREA)
GB24203/39A 1936-12-24 1937-12-23 Improvements in or relating to machines for selecting record cards from a file of cards Expired GB523710A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US523710XA 1936-12-24 1936-12-24

Publications (1)

Publication Number Publication Date
GB523710A true GB523710A (en) 1940-07-19

Family

ID=21977182

Family Applications (1)

Application Number Title Priority Date Filing Date
GB24203/39A Expired GB523710A (en) 1936-12-24 1937-12-23 Improvements in or relating to machines for selecting record cards from a file of cards

Country Status (2)

Country Link
GB (1) GB523710A (https=)
NL (2) NL60530C (https=)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2434487A (en) * 1941-09-13 1948-01-13 Ibm Record controlled adding and comparing machine
US2445636A (en) * 1940-07-24 1948-07-20 Ibm Record controlled machine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2445636A (en) * 1940-07-24 1948-07-20 Ibm Record controlled machine
US2434487A (en) * 1941-09-13 1948-01-13 Ibm Record controlled adding and comparing machine

Also Published As

Publication number Publication date
NL81425B (https=)
NL60530C (https=)

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