IT1219365B - Bussola magnetica - Google Patents

Bussola magnetica

Info

Publication number
IT1219365B
IT1219365B IT67538/88A IT6753888A IT1219365B IT 1219365 B IT1219365 B IT 1219365B IT 67538/88 A IT67538/88 A IT 67538/88A IT 6753888 A IT6753888 A IT 6753888A IT 1219365 B IT1219365 B IT 1219365B
Authority
IT
Italy
Prior art keywords
magnetic compass
compass
magnetic
Prior art date
Application number
IT67538/88A
Other languages
English (en)
Other versions
IT8867538A0 (it
Inventor
Blanc Kenneth J Le
Original Assignee
Rule Industries
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 Rule Industries filed Critical Rule Industries
Publication of IT8867538A0 publication Critical patent/IT8867538A0/it
Application granted granted Critical
Publication of IT1219365B publication Critical patent/IT1219365B/it

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
    • G01C17/02—Magnetic compasses
    • 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
    • G01C17/02—Magnetic compasses
    • G01C17/04—Magnetic compasses with north-seeking magnetic elements, e.g. needles
    • G01C17/10—Comparing observed direction with north indication
    • G01C17/14—Comparing observed direction with north indication by reference marks, e.g. for ships' compasses

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Pivots And Pivotal Connections (AREA)
  • Instructional Devices (AREA)
  • Credit Cards Or The Like (AREA)
IT67538/88A 1987-06-08 1988-06-08 Bussola magnetica IT1219365B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US5956787A 1987-06-08 1987-06-08

Publications (2)

Publication Number Publication Date
IT8867538A0 IT8867538A0 (it) 1988-06-08
IT1219365B true IT1219365B (it) 1990-05-11

Family

ID=22023809

Family Applications (1)

Application Number Title Priority Date Filing Date
IT67538/88A IT1219365B (it) 1987-06-08 1988-06-08 Bussola magnetica

Country Status (3)

Country Link
FI (1) FI97167C (it)
IT (1) IT1219365B (it)
SE (1) SE8802102L (it)

Also Published As

Publication number Publication date
IT8867538A0 (it) 1988-06-08
FI882681A (fi) 1988-12-09
FI97167C (fi) 1996-10-25
SE8802102D0 (sv) 1988-06-06
SE8802102L (sv) 1988-12-09
FI97167B (fi) 1996-07-15
FI882681A0 (fi) 1988-06-07

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Legal Events

Date Code Title Description
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19950630