FR820790A - Calculation square - Google Patents

Calculation square

Info

Publication number
FR820790A
FR820790A FR820790DA FR820790A FR 820790 A FR820790 A FR 820790A FR 820790D A FR820790D A FR 820790DA FR 820790 A FR820790 A FR 820790A
Authority
FR
France
Prior art keywords
calculation square
calculation
square
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
Lo Papa
Serra
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 filed Critical
Application granted granted Critical
Publication of FR820790A publication Critical patent/FR820790A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06G—ANALOGUE COMPUTERS
    • G06G1/00—Hand manipulated computing devices
    • G06G1/14—Hand manipulated computing devices in which a straight or curved line has to be drawn from given points on one or more input scales to one or more points on a result scale

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
FR820790D 1937-04-19 1937-04-19 Calculation square Expired FR820790A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR820790T 1937-04-19

Publications (1)

Publication Number Publication Date
FR820790A true FR820790A (en) 1937-11-18

Family

ID=9273794

Family Applications (1)

Application Number Title Priority Date Filing Date
FR820790D Expired FR820790A (en) 1937-04-19 1937-04-19 Calculation square

Country Status (1)

Country Link
FR (1) FR820790A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4200990A (en) * 1978-10-19 1980-05-06 The Stanley Works Metric rafter square and method of using same
US4674192A (en) * 1986-02-03 1987-06-23 Libit Jeanne E Accounting guide

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4200990A (en) * 1978-10-19 1980-05-06 The Stanley Works Metric rafter square and method of using same
US4674192A (en) * 1986-02-03 1987-06-23 Libit Jeanne E Accounting guide

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