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AU8777475A - Electronic calculator - Google Patents

Electronic calculator

Info

Publication number
AU8777475A
AU8777475A AU87774/75A AU8777475A AU8777475A AU 8777475 A AU8777475 A AU 8777475A AU 87774/75 A AU87774/75 A AU 87774/75A AU 8777475 A AU8777475 A AU 8777475A AU 8777475 A AU8777475 A AU 8777475A
Authority
AU
Australia
Prior art keywords
electronic calculator
calculator
electronic
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
AU87774/75A
Inventor
Mark S Linsky
Richard E Whicker
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.)
HP Inc
Original Assignee
Hewlett Packard Co
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 Hewlett Packard Co filed Critical Hewlett Packard Co
Publication of AU8777475A publication Critical patent/AU8777475A/en
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G06COMPUTING OR CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F15/00Digital computers in general; Data processing equipment in general
    • G06F15/02Digital computers in general; Data processing equipment in general manually operated with input through keyboard and computation using a built-in program, e.g. pocket calculators
    • G06F15/0216Constructional details or arrangements
    • H02J4/25
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/02Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from AC mains by converters

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Computing Systems (AREA)
  • Computer Hardware Design (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Power Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Secondary Cells (AREA)
AU87774/75A 1975-01-03 1975-12-22 Electronic calculator Expired AU8777475A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US53849575A 1975-01-03 1975-01-03

Publications (1)

Publication Number Publication Date
AU8777475A true AU8777475A (en) 1977-06-30

Family

ID=24147153

Family Applications (1)

Application Number Title Priority Date Filing Date
AU87774/75A Expired AU8777475A (en) 1975-01-03 1975-12-22 Electronic calculator

Country Status (4)

Country Link
AU (1) AU8777475A (en)
BR (1) BR7508626A (en)
DE (1) DE2555661A1 (en)
FR (1) FR2296882A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU603550B2 (en) * 1985-09-26 1990-11-22 Lions Eye Institute Of Western Australia Incorporated, The Portable power supply

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0024268A1 (en) * 1979-08-10 1981-02-25 Sandvik Aktiebolag AC/DC source for portable motor driven devices

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3344899A (en) * 1963-04-22 1967-10-03 Scm Corp Portable data transferring machines operable from either dc or ac current
US3539898A (en) * 1968-11-04 1970-11-10 Sperry Rand Corp Charging means for electrical appliance
CA998736A (en) * 1973-03-30 1976-10-19 James B. Taylor (Jr.) Automatic switching voltage adapter for calculating system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU603550B2 (en) * 1985-09-26 1990-11-22 Lions Eye Institute Of Western Australia Incorporated, The Portable power supply

Also Published As

Publication number Publication date
FR2296882B1 (en) 1977-08-19
FR2296882A1 (en) 1976-07-30
DE2555661A1 (en) 1976-07-08
BR7508626A (en) 1976-08-24

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