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GB642348A - Improvements in parallel rulers - Google Patents

Improvements in parallel rulers

Info

Publication number
GB642348A
GB642348A GB734748A GB734748A GB642348A GB 642348 A GB642348 A GB 642348A GB 734748 A GB734748 A GB 734748A GB 734748 A GB734748 A GB 734748A GB 642348 A GB642348 A GB 642348A
Authority
GB
United Kingdom
Prior art keywords
parallel rulers
rulers
parallel
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
GB734748A
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.)
JOHN GRAHAM BINNY
Original Assignee
JOHN GRAHAM BINNY
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 JOHN GRAHAM BINNY filed Critical JOHN GRAHAM BINNY
Priority to GB734748A priority Critical patent/GB642348A/en
Publication of GB642348A publication Critical patent/GB642348A/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
    • B43L7/04—Straightedges with rollers

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
GB734748A 1948-03-10 1948-03-10 Improvements in parallel rulers Expired GB642348A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB734748A GB642348A (en) 1948-03-10 1948-03-10 Improvements in parallel rulers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB734748A GB642348A (en) 1948-03-10 1948-03-10 Improvements in parallel rulers

Publications (1)

Publication Number Publication Date
GB642348A true GB642348A (en) 1950-08-30

Family

ID=9831382

Family Applications (1)

Application Number Title Priority Date Filing Date
GB734748A Expired GB642348A (en) 1948-03-10 1948-03-10 Improvements in parallel rulers

Country Status (1)

Country Link
GB (1) GB642348A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2893127A (en) * 1955-08-25 1959-07-07 Mcintosh Ian Arthur Parallel rule
GB2118105A (en) * 1982-04-08 1983-10-26 Graeme Peter Sagar Drawing implements
US4586265A (en) * 1984-10-29 1986-05-06 Hopkins William G Perspective drawing apparatus
GB2180799A (en) * 1985-09-23 1987-04-08 Ahmad Tun Syed Nasir Syed Ruler
EP0346110A1 (en) * 1988-06-09 1989-12-13 Albert Maurice Prowse Multi-directional type parallel rule

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2893127A (en) * 1955-08-25 1959-07-07 Mcintosh Ian Arthur Parallel rule
GB2118105A (en) * 1982-04-08 1983-10-26 Graeme Peter Sagar Drawing implements
US4586265A (en) * 1984-10-29 1986-05-06 Hopkins William G Perspective drawing apparatus
GB2180799A (en) * 1985-09-23 1987-04-08 Ahmad Tun Syed Nasir Syed Ruler
EP0346110A1 (en) * 1988-06-09 1989-12-13 Albert Maurice Prowse Multi-directional type parallel rule

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