FR4022E - Improvements to slide rules - Google Patents

Improvements to slide rules

Info

Publication number
FR4022E
FR4022E FR4022DA FR4022E FR 4022 E FR4022 E FR 4022E FR 4022D A FR4022D A FR 4022DA FR 4022 E FR4022 E FR 4022E
Authority
FR
France
Prior art keywords
slide rules
rules
slide
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
Other languages
French (fr)
Inventor
Francis James Anderson
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of FR4022E publication Critical patent/FR4022E/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06G—ANALOGUE COMPUTERS
    • G06G1/00—Hand manipulated computing devices
    • G06G1/02—Devices in which computing is effected by adding, subtracting, or comparing lengths of parallel or concentric graduated scales
    • G06G1/10—Devices in which computing is effected by adding, subtracting, or comparing lengths of parallel or concentric graduated scales characterised by the graduation

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
FR4022D 1903-12-07 1904-11-29 Improvements to slide rules Expired FR4022E (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR337450T 1903-12-07
FR4022T 1904-11-29

Publications (1)

Publication Number Publication Date
FR4022E true FR4022E (en) 1905-05-03

Family

ID=1347164

Family Applications (1)

Application Number Title Priority Date Filing Date
FR4022D Expired FR4022E (en) 1903-12-07 1904-11-29 Improvements to slide rules

Country Status (1)

Country Link
FR (1) FR4022E (en)

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