USD317787S - Mathematical aid - Google Patents

Mathematical aid Download PDF

Info

Publication number
USD317787S
USD317787S US07/482,749 US48274990F USD317787S US D317787 S USD317787 S US D317787S US 48274990 F US48274990 F US 48274990F US D317787 S USD317787 S US D317787S
Authority
US
United States
Prior art keywords
mathematical aid
mathematical
aid
ornamental design
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
US07/482,749
Inventor
William A. Davidson
Silvia Davidson
John D. Charters
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 USD317787S publication Critical patent/USD317787S/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 mathematical aid showing our new design; and
FIG. 2 is a bottom plan view thereof.

Claims (1)

  1. The ornamental design of a mathematical aid, as shown and described.
US07/482,749 1989-08-22 1990-02-21 Mathematical aid Expired - Lifetime USD317787S (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AU198902712F AU109393S (en) 1989-08-22 1989-08-22 A string of beads
AU02712/89 1989-08-22

Publications (1)

Publication Number Publication Date
USD317787S true USD317787S (en) 1991-06-25

Family

ID=66424953

Family Applications (1)

Application Number Title Priority Date Filing Date
US07/482,749 Expired - Lifetime USD317787S (en) 1989-08-22 1990-02-21 Mathematical aid

Country Status (2)

Country Link
US (1) USD317787S (en)
AU (1) AU109393S (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060169322A1 (en) * 2003-12-12 2006-08-03 Torkelson John E Concealed automatic pool vacuum systems

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060169322A1 (en) * 2003-12-12 2006-08-03 Torkelson John E Concealed automatic pool vacuum systems

Also Published As

Publication number Publication date
AU109393S (en) 1990-10-31

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