FR528807A - Perfectionnements apportés aux règles à calculs - Google Patents

Perfectionnements apportés aux règles à calculs

Info

Publication number
FR528807A
FR528807A FR528807A FR528807DA FR528807A FR 528807 A FR528807 A FR 528807A FR 528807 A FR528807 A FR 528807A FR 528807D A FR528807D A FR 528807DA FR 528807 A FR528807 A FR 528807A
Authority
FR
France
Prior art keywords
improvements made
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
FR528807A
Other languages
English (en)
Inventor
Alphonse-Adrien-Fern Marc
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.)
ALPHONSE ADRIEN FERNAND MARC
Original Assignee
ALPHONSE ADRIEN FERNAND MARC
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 ALPHONSE ADRIEN FERNAND MARC filed Critical ALPHONSE ADRIEN FERNAND MARC
Application granted granted Critical
Publication of FR528807A publication Critical patent/FR528807A/fr
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
    • G06G1/04—Devices in which computing is effected by adding, subtracting, or comparing lengths of parallel or concentric graduated scales characterised by construction

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
FR528807A 1920-12-18 1920-12-18 Perfectionnements apportés aux règles à calculs Expired FR528807A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR528807T 1920-12-18

Publications (1)

Publication Number Publication Date
FR528807A true FR528807A (fr) 1921-11-19

Family

ID=8922308

Family Applications (1)

Application Number Title Priority Date Filing Date
FR528807A Expired FR528807A (fr) 1920-12-18 1920-12-18 Perfectionnements apportés aux règles à calculs

Country Status (1)

Country Link
FR (1) FR528807A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2701687A (en) * 1951-02-19 1955-02-08 Acu Rule Mfg Company Slide rule

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2701687A (en) * 1951-02-19 1955-02-08 Acu Rule Mfg Company Slide rule

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