CH87572A - Circle. - Google Patents
Circle.Info
- Publication number
- CH87572A CH87572A CH87572DA CH87572A CH 87572 A CH87572 A CH 87572A CH 87572D A CH87572D A CH 87572DA CH 87572 A CH87572 A CH 87572A
- Authority
- CH
- Switzerland
- Prior art keywords
- circle
- Prior art date
Links
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
- B43L9/00—Circular curve-drawing or like instruments
- B43L9/16—Features common to compasses, dividers, and callipers
- B43L9/20—Pivots
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US303271A US1343664A (en) | 1919-06-11 | 1919-06-11 | Compasses |
Publications (1)
Publication Number | Publication Date |
---|---|
CH87572A true CH87572A (en) | 1920-12-16 |
Family
ID=23171291
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH87572D CH87572A (en) | 1919-06-11 | 1920-04-12 | Circle. |
Country Status (3)
Country | Link |
---|---|
US (1) | US1343664A (en) |
CH (1) | CH87572A (en) |
DE (1) | DE348704C (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2582585A (en) * | 1947-03-20 | 1952-01-15 | James Mfg Co Inc | Compass |
US2559170A (en) * | 1947-12-10 | 1951-07-03 | Pickett Herbert | Micrometer caliper with ball pivot and cam |
US2794259A (en) * | 1953-04-24 | 1957-06-04 | Proebster Jr C | Compass |
-
1919
- 1919-06-11 US US303271A patent/US1343664A/en not_active Expired - Lifetime
-
1920
- 1920-04-12 CH CH87572D patent/CH87572A/en unknown
- 1920-05-09 DE DE1920348704D patent/DE348704C/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US1343664A (en) | 1920-06-15 |
DE348704C (en) | 1922-02-14 |
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