GB191127880A - Improvements in and relating to Rulers. - Google Patents

Improvements in and relating to Rulers.

Info

Publication number
GB191127880A
GB191127880A GB191127880DA GB191127880A GB 191127880 A GB191127880 A GB 191127880A GB 191127880D A GB191127880D A GB 191127880DA GB 191127880 A GB191127880 A GB 191127880A
Authority
GB
United Kingdom
Prior art keywords
ruler
rulers
guard
relating
caldwell
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
Other languages
English (en)
Inventor
William Addison Caldwell
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of GB191127880A publication Critical patent/GB191127880A/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)
GB191127880D 1911-12-12 1911-12-12 Improvements in and relating to Rulers. Expired GB191127880A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB191127880T 1911-12-12

Publications (1)

Publication Number Publication Date
GB191127880A true GB191127880A (en) 1912-06-06

Family

ID=32366336

Family Applications (1)

Application Number Title Priority Date Filing Date
GB191127880D Expired GB191127880A (en) 1911-12-12 1911-12-12 Improvements in and relating to Rulers.

Country Status (3)

Country Link
DE (1) DE253830C (enrdf_load_stackoverflow)
FR (1) FR437880A (enrdf_load_stackoverflow)
GB (1) GB191127880A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
DE253830C (enrdf_load_stackoverflow)
FR437880A (fr) 1912-05-02

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