GB534905A - Improvements in or relating to compass cards for magnetic compasses - Google Patents

Improvements in or relating to compass cards for magnetic compasses

Info

Publication number
GB534905A
GB534905A GB2639539A GB2639539A GB534905A GB 534905 A GB534905 A GB 534905A GB 2639539 A GB2639539 A GB 2639539A GB 2639539 A GB2639539 A GB 2639539A GB 534905 A GB534905 A GB 534905A
Authority
GB
United Kingdom
Prior art keywords
relating
magnetic compasses
compass cards
compass
moulded
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
GB2639539A
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.)
Kelvin Bottomley & Baird Ltd
Original Assignee
Kelvin Bottomley & Baird Ltd
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 Kelvin Bottomley & Baird Ltd filed Critical Kelvin Bottomley & Baird Ltd
Priority to GB2639539A priority Critical patent/GB534905A/en
Publication of GB534905A publication Critical patent/GB534905A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C17/00—Compasses; Devices for ascertaining true or magnetic north for navigation or surveying purposes

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Credit Cards Or The Like (AREA)

Abstract

534,905. Magnetic compasses. KELVIN, BOTTOMLEY & BAIRD, Ltd., and ARMSTRONG, L. A. Sept. 22, 1939, No. 26395. [Class 97 (ii)] A compass card-moulded or pressed from material known as " plastics " has the degrees and other markings moulded or pressed in relief or in intaglio in the material. Specifications 416,241 and 508,972, [Group XIX], are referred to.
GB2639539A 1939-09-22 1939-09-22 Improvements in or relating to compass cards for magnetic compasses Expired GB534905A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2639539A GB534905A (en) 1939-09-22 1939-09-22 Improvements in or relating to compass cards for magnetic compasses

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2639539A GB534905A (en) 1939-09-22 1939-09-22 Improvements in or relating to compass cards for magnetic compasses

Publications (1)

Publication Number Publication Date
GB534905A true GB534905A (en) 1941-03-21

Family

ID=10242972

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2639539A Expired GB534905A (en) 1939-09-22 1939-09-22 Improvements in or relating to compass cards for magnetic compasses

Country Status (1)

Country Link
GB (1) GB534905A (en)

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