CA213931A - Combination rule and compass - Google Patents

Combination rule and compass

Info

Publication number
CA213931A
CA213931A CA213931A CA213931DA CA213931A CA 213931 A CA213931 A CA 213931A CA 213931 A CA213931 A CA 213931A CA 213931D A CA213931D A CA 213931DA CA 213931 A CA213931 A CA 213931A
Authority
CA
Canada
Prior art keywords
compass
combination rule
rule
combination
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
CA213931A
Other languages
French (fr)
Inventor
G. Hayden Zerah
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 CA213931A publication Critical patent/CA213931A/en
Expired legal-status Critical Current

Links

CA213931A Combination rule and compass Expired CA213931A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA213931T

Publications (1)

Publication Number Publication Date
CA213931A true CA213931A (en) 1921-10-25

Family

ID=35108375

Family Applications (1)

Application Number Title Priority Date Filing Date
CA213931A Expired CA213931A (en) Combination rule and compass

Country Status (1)

Country Link
CA (1) CA213931A (en)

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