GB712091A - Improvements in hinges of folding rules - Google Patents

Improvements in hinges of folding rules

Info

Publication number
GB712091A
GB712091A GB1181849A GB1181849A GB712091A GB 712091 A GB712091 A GB 712091A GB 1181849 A GB1181849 A GB 1181849A GB 1181849 A GB1181849 A GB 1181849A GB 712091 A GB712091 A GB 712091A
Authority
GB
United Kingdom
Prior art keywords
hinges
folding rules
rules
folding
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
GB1181849A
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
Priority to GB1181849A priority Critical patent/GB712091A/en
Publication of GB712091A publication Critical patent/GB712091A/en
Expired legal-status Critical Current

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
    • G01B3/06—Rulers with scales or marks for direct reading rigid folding

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
GB1181849A 1949-05-03 1949-05-03 Improvements in hinges of folding rules Expired GB712091A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1181849A GB712091A (en) 1949-05-03 1949-05-03 Improvements in hinges of folding rules

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1181849A GB712091A (en) 1949-05-03 1949-05-03 Improvements in hinges of folding rules

Publications (1)

Publication Number Publication Date
GB712091A true GB712091A (en) 1954-07-21

Family

ID=9993247

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1181849A Expired GB712091A (en) 1949-05-03 1949-05-03 Improvements in hinges of folding rules

Country Status (1)

Country Link
GB (1) GB712091A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4317289A (en) * 1979-04-19 1982-03-02 U. D. P., Inc. Pivoted two-section carpenter's level
GB2398125A (en) * 2003-02-07 2004-08-11 It S Academic Of Illinois Inc Foldable ruler
GB2415663A (en) * 2004-07-01 2006-01-04 Helix Ltd Folding blackboard drawing aids

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4317289A (en) * 1979-04-19 1982-03-02 U. D. P., Inc. Pivoted two-section carpenter's level
GB2398125A (en) * 2003-02-07 2004-08-11 It S Academic Of Illinois Inc Foldable ruler
GB2398125B (en) * 2003-02-07 2006-07-19 It S Academic Of Illinois Inc Ruler
GB2415663A (en) * 2004-07-01 2006-01-04 Helix Ltd Folding blackboard drawing aids
GB2415663B (en) * 2004-07-01 2007-10-17 Helix Ltd Stationery items

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