MTP824B - Telescopic graduated ruler for perspective drawing and other uses - Google Patents

Telescopic graduated ruler for perspective drawing and other uses

Info

Publication number
MTP824B
MTP824B MT824A MTP824A MTP824B MT P824 B MTP824 B MT P824B MT 824 A MT824 A MT 824A MT P824 A MTP824 A MT P824A MT P824 B MTP824 B MT P824B
Authority
MT
Malta
Prior art keywords
perspective drawing
graduated ruler
telescopic graduated
telescopic
ruler
Prior art date
Application number
MT824A
Inventor
Edgar Xuereb
Original Assignee
Edgar Xuereb
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 Edgar Xuereb filed Critical Edgar Xuereb
Publication of MTP824B publication Critical patent/MTP824B/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B3/00—Measuring instruments characterised by the use of mechanical techniques
    • G01B3/02—Rulers with scales or marks for direct reading
    • G01B3/04—Rulers with scales or marks for direct reading rigid
    • G01B3/08—Rulers with scales or marks for direct reading rigid extensible
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
    • B43L7/00—Straightedges
    • B43L7/005—Straightedges combined with other drawing aids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
    • B43L9/00—Circular curve-drawing or like instruments
    • B43L9/02—Compasses
    • B43L9/04—Beam compasses

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Drawing Aids And Blackboards (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)
  • Length-Measuring Instruments Using Mechanical Means (AREA)
MT824A 1977-03-11 1978-03-08 Telescopic graduated ruler for perspective drawing and other uses MTP824B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB10321/77A GB1566059A (en) 1977-03-11 1977-03-11 Measuring and draughting instrument

Publications (1)

Publication Number Publication Date
MTP824B true MTP824B (en) 1979-03-27

Family

ID=9965724

Family Applications (1)

Application Number Title Priority Date Filing Date
MT824A MTP824B (en) 1977-03-11 1978-03-08 Telescopic graduated ruler for perspective drawing and other uses

Country Status (5)

Country Link
US (1) US4205450A (en)
AU (1) AU512966B2 (en)
CA (1) CA1124510A (en)
GB (1) GB1566059A (en)
MT (1) MTP824B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7913406B2 (en) * 2008-11-10 2011-03-29 Norelli Louis A Hands-free measuring instrument
US8621760B2 (en) * 2008-11-10 2014-01-07 Louis A. Norelli Hands-free measuring instrument
US20150128432A1 (en) * 2013-11-08 2015-05-14 Jonathon Jacob Penneman Slidable Alignment Apparatus
CN108583084A (en) * 2018-05-28 2018-09-28 喻正江 A kind of compasses for teaching

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US909068A (en) * 1907-12-20 1909-01-05 Clifford K Denman Extension-rule.
US1288556A (en) * 1916-01-31 1918-12-24 Dahl Mfg Co Interlocking slidable sections.
US1299627A (en) * 1917-05-29 1919-04-08 Henry Simon Rule.
US1629829A (en) * 1925-06-09 1927-05-24 Carl O Linn Extension rule
US2245646A (en) * 1939-06-30 1941-06-17 Lingham J Bullivant Extension plumb rod
US3492737A (en) * 1968-01-23 1970-02-03 Carl Josua Swanson Extensible ruler

Also Published As

Publication number Publication date
AU512966B2 (en) 1980-11-06
AU3407678A (en) 1979-11-08
CA1124510A (en) 1982-06-01
US4205450A (en) 1980-06-03
GB1566059A (en) 1980-04-30

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