FR766942A - Perfectionnements aux diagraphes - Google Patents

Perfectionnements aux diagraphes

Info

Publication number: FR766942A
Authority: FR; France
Prior art keywords: logging; logging improvements
Prior art date: 1933-01-16
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

Other languages

English (en)

Inventor

Walter Allan Bockius

Howard Beran Jones

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.)

1933-01-16

Filing date

1934-01-13

Publication date

1934-07-06

1934-01-13 Application filed filed Critical

1934-07-06 Application granted granted Critical

1934-07-06 Publication of FR766942A publication Critical patent/FR766942A/fr

Status Expired legal-status Critical Current

Classifications

- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
- B43L11/00—Non-circular-curve-drawing instruments

FR766942D 1933-01-16 1934-01-13 Perfectionnements aux diagraphes Expired FR766942A (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US418554XA	1933-01-16	1933-01-16

Publications (1)

Publication Number	Publication Date
FR766942A true FR766942A (fr)	1934-07-06

Family

ID=21918702

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR766942D Expired FR766942A (fr)	1933-01-16	1934-01-13	Perfectionnements aux diagraphes

Country Status (3)

Country	Link
DE (1)	DE613815C (fr)
FR (1)	FR766942A (fr)
GB (1)	GB418554A (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2720704A (en) *	1952-12-15	1955-10-18	Robert K Mcberty	Toy
NL128931C (fr) *	1963-07-25
US3298104A (en) *	1965-10-23	1967-01-17	Smith Dan Vernon	Geometric design instrument
GB8727325D0 (en) *	1987-11-21	1987-12-23	Powell R J	Harmonic pattern generator

1934
- 1934-01-07 DE DEJ48738D patent/DE613815C/de not_active Expired
- 1934-01-13 FR FR766942D patent/FR766942A/fr not_active Expired
- 1934-01-16 GB GB1612/34A patent/GB418554A/en not_active Expired

Also Published As

Publication number	Publication date
GB418554A (en)	1934-10-26
DE613815C (de)	1935-06-15

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