JPH0479693U - - Google Patents

Info

Publication number
JPH0479693U
JPH0479693U JP12319490U JP12319490U JPH0479693U JP H0479693 U JPH0479693 U JP H0479693U JP 12319490 U JP12319490 U JP 12319490U JP 12319490 U JP12319490 U JP 12319490U JP H0479693 U JPH0479693 U JP H0479693U
Authority
JP
Japan
Prior art keywords
ruler
utility
holes
model
ellipse
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.)
Pending
Application number
JP12319490U
Other languages
English (en)
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 filed Critical
Priority to JP12319490U priority Critical patent/JPH0479693U/ja
Publication of JPH0479693U publication Critical patent/JPH0479693U/ja
Pending legal-status Critical Current

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  • Drawing Aids And Blackboards (AREA)

Description

【図面の簡単な説明】
第1図は、本考案の楕円定規、第2図は、本考
案の楕円定規。 A,B……定規、1,3……凸部、2,4……
凹部、5……楕円引き用穴、6……楕円の軌跡。

Claims (1)

  1. 【実用新案登録請求の範囲】 (イ) 定規Aには、大きな穴の内側に凸部1と凹
    部2とを等間隔で交互に形成し、他方定規Bは、
    定規Aの大きな穴の直径の四分の一の半径の小さ
    な円でその外側に、定規Aの凸部1と凹部2にち
    ようど嵌まる形状した凸部3と凹部4で形成し、
    また、定規Bには、外側から中心にかけて楕円引
    き用穴5を数個あけてある、定規Aと定規Bとの
    組み合わせとからなる楕円定規。 (ロ) 定規Aの外形が円型に穴をあけた実用新案
    請求の範囲の(イ)項記載の楕円定規。 (ハ) 定規Aの外形が四角に穴をあけた実用新案
    請求の範囲の(イ)項記載の楕円定規。
JP12319490U 1990-11-22 1990-11-22 Pending JPH0479693U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12319490U JPH0479693U (ja) 1990-11-22 1990-11-22

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12319490U JPH0479693U (ja) 1990-11-22 1990-11-22

Publications (1)

Publication Number Publication Date
JPH0479693U true JPH0479693U (ja) 1992-07-10

Family

ID=31870914

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12319490U Pending JPH0479693U (ja) 1990-11-22 1990-11-22

Country Status (1)

Country Link
JP (1) JPH0479693U (ja)

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