GB488016A - Improvements in parallel rulers - Google Patents

Improvements in parallel rulers

Info

Publication number
GB488016A
GB488016A GB335138A GB335138A GB488016A GB 488016 A GB488016 A GB 488016A GB 335138 A GB335138 A GB 335138A GB 335138 A GB335138 A GB 335138A GB 488016 A GB488016 A GB 488016A
Authority
GB
United Kingdom
Prior art keywords
parallel rulers
scale
rulers
parallel
bullock
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
GB335138A
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.)
SIDNEY ALBERT THOMAS BULLOCK
Original Assignee
SIDNEY ALBERT THOMAS BULLOCK
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 SIDNEY ALBERT THOMAS BULLOCK filed Critical SIDNEY ALBERT THOMAS BULLOCK
Priority to GB335138A priority Critical patent/GB488016A/en
Publication of GB488016A publication Critical patent/GB488016A/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
    • B43L7/005—Straightedges combined with other drawing aids

Landscapes

  • Mechanical Coupling Of Light Guides (AREA)
  • Threshing Machine Elements (AREA)
  • Rod-Shaped Construction Members (AREA)

Abstract

488,016. Parallel rulers. BULLOCK, S. A. T. Feb. 3, 1938, No.3351. [Class 97 (iii)] The distance between the inner edges of the rules C, D, is indicated by a scale A on one of the links in the units of a scale B on the rule D.
GB335138A 1938-02-03 1938-02-03 Improvements in parallel rulers Expired GB488016A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB335138A GB488016A (en) 1938-02-03 1938-02-03 Improvements in parallel rulers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB335138A GB488016A (en) 1938-02-03 1938-02-03 Improvements in parallel rulers

Publications (1)

Publication Number Publication Date
GB488016A true GB488016A (en) 1938-06-29

Family

ID=9756670

Family Applications (1)

Application Number Title Priority Date Filing Date
GB335138A Expired GB488016A (en) 1938-02-03 1938-02-03 Improvements in parallel rulers

Country Status (1)

Country Link
GB (1) GB488016A (en)

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