GB150464A - An improved ruler and paper knife - Google Patents

An improved ruler and paper knife

Info

Publication number
GB150464A
GB150464A GB1575019A GB1575019A GB150464A GB 150464 A GB150464 A GB 150464A GB 1575019 A GB1575019 A GB 1575019A GB 1575019 A GB1575019 A GB 1575019A GB 150464 A GB150464 A GB 150464A
Authority
GB
United Kingdom
Prior art keywords
paper
knife
paper knife
ruler
top surface
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
Application number
GB1575019A
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.)
JOSEPH SOLOMON JOHNSON
Original Assignee
JOSEPH SOLOMON JOHNSON
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 JOSEPH SOLOMON JOHNSON filed Critical JOSEPH SOLOMON JOHNSON
Priority to GB1575019A priority Critical patent/GB150464A/en
Publication of GB150464A publication Critical patent/GB150464A/en
Expired legal-status Critical Current

Links

Classifications

    • 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

Landscapes

  • Drawing Aids And Blackboards (AREA)

Abstract

150,464. Johnson, J. S. June 23, 1919. Rulers.-A ruler and paper-knife, preferably made of wood, is of triangular cross-section, the three sides a, b, c being unequal in length. The top surface is flat and graduated. The under surface b', c<1> meet at an obtuse angle, the surface c<1> affording a base so that the front edge b<2> is raised clear of the paper. The angle between the top surface and the surface c<1> is very acute, the edge c<2> serving as a paper-knife. A hole d is provided to serve as a centre by which to draw lines at various angles.
GB1575019A 1919-06-23 1919-06-23 An improved ruler and paper knife Expired GB150464A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1575019A GB150464A (en) 1919-06-23 1919-06-23 An improved ruler and paper knife

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1575019A GB150464A (en) 1919-06-23 1919-06-23 An improved ruler and paper knife

Publications (1)

Publication Number Publication Date
GB150464A true GB150464A (en) 1920-09-09

Family

ID=10064809

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1575019A Expired GB150464A (en) 1919-06-23 1919-06-23 An improved ruler and paper knife

Country Status (1)

Country Link
GB (1) GB150464A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5771598A (en) * 1996-03-25 1998-06-30 Lassberg; Hilmar J. Measurement device with British/metric scales

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5771598A (en) * 1996-03-25 1998-06-30 Lassberg; Hilmar J. Measurement device with British/metric scales

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