USD351858S - Ruler teaching apparatus - Google Patents

Ruler teaching apparatus Download PDF

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Publication number
USD351858S
USD351858S US29/005,388 US538893F USD351858S US D351858 S USD351858 S US D351858S US 538893 F US538893 F US 538893F US D351858 S USD351858 S US D351858S
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US
United States
Prior art keywords
teaching apparatus
ruler
ruler teaching
present
view
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
Application number
US29/005,388
Inventor
John J. Jones
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Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to US29/005,388 priority Critical patent/USD351858S/en
Application granted granted Critical
Publication of USD351858S publication Critical patent/USD351858S/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Description

FIG. 1 is a top perspective view of a ruler teaching apparatus showing my new design;
FIG. 2 is a front elevational view of the ruler teaching apparatus according to the present invention;
FIG. 3 is a rear elevational view of the ruler teaching apparatus according to the present invention;
FIG. 4 is a top plan view of the ruler teaching apparatus according to the present invention;
FIG. 5 is a bottom plan view of the ruler teaching apparatus according to the present invention;
FIG. 6 is a left side elevational view of the ruler teaching apparatus according to the present invention; and,
FIG. 7 is a right side elevational view of the ruler teaching apparatus according to the present invention.

Claims (1)

  1. The ornamental design of a ruler teaching apparatus, as shown and described.
US29/005,388 1993-03-03 1993-03-03 Ruler teaching apparatus Expired - Lifetime USD351858S (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US29/005,388 USD351858S (en) 1993-03-03 1993-03-03 Ruler teaching apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US29/005,388 USD351858S (en) 1993-03-03 1993-03-03 Ruler teaching apparatus

Publications (1)

Publication Number Publication Date
USD351858S true USD351858S (en) 1994-10-25

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ID=70856619

Family Applications (1)

Application Number Title Priority Date Filing Date
US29/005,388 Expired - Lifetime USD351858S (en) 1993-03-03 1993-03-03 Ruler teaching apparatus

Country Status (1)

Country Link
US (1) USD351858S (en)

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
Cenco Educational Catalog, 1969, p. 1, Element #72695.
Welch Physics Digest, Apr. 1951 p. 27 Vernier Caliper on top of page.

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