FR451143A - Improvements to calculating machines - Google Patents

Improvements to calculating machines

Info

Publication number
FR451143A
FR451143A FR451143DA FR451143A FR 451143 A FR451143 A FR 451143A FR 451143D A FR451143D A FR 451143DA FR 451143 A FR451143 A FR 451143A
Authority
FR
France
Prior art keywords
calculating machines
machines
calculating
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
Dorr Eugene Felt
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 FR451143A publication Critical patent/FR451143A/en
Expired legal-status Critical Current

Links

FR451143D 1911-11-28 1912-11-27 Improvements to calculating machines Expired FR451143A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US451143XA 1911-11-28 1911-11-28

Publications (1)

Publication Number Publication Date
FR451143A true FR451143A (en) 1913-04-11

Family

ID=43350949

Family Applications (1)

Application Number Title Priority Date Filing Date
FR451143D Expired FR451143A (en) 1911-11-28 1912-11-27 Improvements to calculating machines

Country Status (1)

Country Link
FR (1) FR451143A (en)

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