CA446578A - Instrument d'observation et de determination d'angle - Google Patents

Instrument d'observation et de determination d'angle

Info

Publication number
CA446578A
CA446578A CA446578A CA446578DA CA446578A CA 446578 A CA446578 A CA 446578A CA 446578 A CA446578 A CA 446578A CA 446578D A CA446578D A CA 446578DA CA 446578 A CA446578 A CA 446578A
Authority
CA
Canada
Prior art keywords
observation
angle
determining instrument
instrument
determining
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
CA446578A
Other languages
English (en)
Inventor
H. Hanger Frederick
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
Publication date
Application granted granted Critical
Publication of CA446578A publication Critical patent/CA446578A/fr
Expired legal-status Critical Current

Links

CA446578A Instrument d'observation et de determination d'angle Expired CA446578A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA446578T

Publications (1)

Publication Number Publication Date
CA446578A true CA446578A (fr) 1948-02-10

Family

ID=35564255

Family Applications (1)

Application Number Title Priority Date Filing Date
CA446578A Expired CA446578A (fr) Instrument d'observation et de determination d'angle

Country Status (1)

Country Link
CA (1) CA446578A (fr)

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