USD433055S - Combined counting board and abacus - Google Patents

Combined counting board and abacus Download PDF

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Publication number
USD433055S
USD433055S US29/116,965 US11696500F USD433055S US D433055 S USD433055 S US D433055S US 11696500 F US11696500 F US 11696500F US D433055 S USD433055 S US D433055S
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Prior art keywords
abacus
counting board
combined counting
combined
board
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 - Lifetime
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US29/116,965
Inventor
Philip Hanthorn
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Individual
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Individual
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Priority to US29/116,965 priority Critical patent/USD433055S/en
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Publication of USD433055S publication Critical patent/USD433055S/en
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FIG. 1 is a top view of the combined counting board and abacus showing my new design, the bottom view being substantially identical thereto;
FIG. 2 is a side view of the combined counting board and abacus shown in FIG. 1, the opposite side being substantially identical thereto; and,
FIG. 3 is an end view of the combined counting board and abacus shown in FIG. 1, the opposite end being substantially identical thereto.

Claims (1)

  1. The ornamental design for a combined counting board and abacus, as shown.
US29/116,965 2000-01-13 2000-01-13 Combined counting board and abacus Expired - Lifetime USD433055S (en)

Priority Applications (1)

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US29/116,965 USD433055S (en) 2000-01-13 2000-01-13 Combined counting board and abacus

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US29/116,965 USD433055S (en) 2000-01-13 2000-01-13 Combined counting board and abacus

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USD433055S true USD433055S (en) 2000-10-31

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US29/116,965 Expired - Lifetime USD433055S (en) 2000-01-13 2000-01-13 Combined counting board and abacus

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD797847S1 (en) * 2016-03-16 2017-09-19 Shi Zhang Abacus
US11314275B2 (en) 2019-07-26 2022-04-26 Ameerah Anakaona Bello Adaptable educational device
USD1033529S1 (en) * 2021-09-24 2024-07-02 James M. Brasfield Unidecimal-based abacus

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2228554A (en) * 1939-07-11 1941-01-14 Charles A Brown Abacus
GB732266A (en) 1952-12-10 1955-06-22 Kosma Pawlow An improved abacus
US2872742A (en) * 1954-12-10 1959-02-10 Andrew F Schott Abacus with magnetic means for holding unit counters in position
US3076272A (en) * 1959-05-28 1963-02-05 Andrew F Schott Abacus
US3455034A (en) * 1965-10-19 1969-07-15 Andrew F Schott Mathematics teaching tool
US3633287A (en) * 1970-05-06 1972-01-11 Fitz A Squires Numerical base systems teaching device
US3688418A (en) * 1970-03-09 1972-09-05 Wilson Henry A Manual computing device

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2228554A (en) * 1939-07-11 1941-01-14 Charles A Brown Abacus
GB732266A (en) 1952-12-10 1955-06-22 Kosma Pawlow An improved abacus
US2872742A (en) * 1954-12-10 1959-02-10 Andrew F Schott Abacus with magnetic means for holding unit counters in position
US3076272A (en) * 1959-05-28 1963-02-05 Andrew F Schott Abacus
US3455034A (en) * 1965-10-19 1969-07-15 Andrew F Schott Mathematics teaching tool
US3688418A (en) * 1970-03-09 1972-09-05 Wilson Henry A Manual computing device
US3633287A (en) * 1970-05-06 1972-01-11 Fitz A Squires Numerical base systems teaching device

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Popular Science; How to use an Abacus by W.D. Loy; pp. 86-90, Aug. 1948.

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD797847S1 (en) * 2016-03-16 2017-09-19 Shi Zhang Abacus
US11314275B2 (en) 2019-07-26 2022-04-26 Ameerah Anakaona Bello Adaptable educational device
USD1033529S1 (en) * 2021-09-24 2024-07-02 James M. Brasfield Unidecimal-based abacus

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