ES10505Y - Rotating decimal circular abacus for arithmetic operations - Google Patents

Rotating decimal circular abacus for arithmetic operations

Info

Publication number
ES10505Y
ES10505Y ES0010505U ES10505U ES10505Y ES 10505 Y ES10505 Y ES 10505Y ES 0010505 U ES0010505 U ES 0010505U ES 10505 U ES10505 U ES 10505U ES 10505 Y ES10505 Y ES 10505Y
Authority
ES
Spain
Prior art keywords
abacus
decimal
circular
rotating
arithmetic operations
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
ES0010505U
Other languages
Spanish (es)
Other versions
ES10505U (en
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
Priority to ES0010505U priority Critical patent/ES10505Y/en
Publication of ES10505U publication Critical patent/ES10505U/en
Application granted granted Critical
Publication of ES10505Y publication Critical patent/ES10505Y/en
Expired legal-status Critical Current

Links

ES0010505U 1944-08-28 1944-08-28 Rotating decimal circular abacus for arithmetic operations Expired ES10505Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES0010505U ES10505Y (en) 1944-08-28 1944-08-28 Rotating decimal circular abacus for arithmetic operations

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES0010505U ES10505Y (en) 1944-08-28 1944-08-28 Rotating decimal circular abacus for arithmetic operations

Publications (2)

Publication Number Publication Date
ES10505U ES10505U (en) 1944-10-01
ES10505Y true ES10505Y (en) 1948-06-01

Family

ID=51074705

Family Applications (1)

Application Number Title Priority Date Filing Date
ES0010505U Expired ES10505Y (en) 1944-08-28 1944-08-28 Rotating decimal circular abacus for arithmetic operations

Country Status (1)

Country Link
ES (1) ES10505Y (en)

Also Published As

Publication number Publication date
ES10505U (en) 1944-10-01

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