CA228791A - Instrument a echelle proportionnelle - Google Patents

Instrument a echelle proportionnelle

Info

Publication number: CA228791A
Authority: CA; Canada
Prior art keywords: proportional scaling; scaling instrument; instrument; proportional; scaling
Prior art date: 1923-02-20
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

CA228791A

Other languages

English (en)

Inventor

D. Carter James

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

1923-02-20

1923-02-20 Application granted granted Critical

1923-02-20 Publication of CA228791A publication Critical patent/CA228791A/fr

Status Expired legal-status Critical Current

Links

CA228791A Instrument a echelle proportionnelle Expired CA228791A (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
CA228791T

Publications (1)

Publication Number	Publication Date
CA228791A true CA228791A (fr)	1923-02-20

Family

ID=35126164

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA228791A Expired CA228791A (fr)			Instrument a echelle proportionnelle

Country Status (1)

Country	Link
CA (1)	CA228791A (fr)

0
- CA CA228791A patent/CA228791A/fr not_active Expired

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