NL81213C - - Google Patents
Info
- Publication number
- NL81213C NL81213C NL81213DA NL81213C NL 81213 C NL81213 C NL 81213C NL 81213D A NL81213D A NL 81213DA NL 81213 C NL81213 C NL 81213C
- Authority
- NL
- Netherlands
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
- B43L7/00—Straightedges
- B43L7/04—Straightedges with rollers
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Length-Measuring Instruments Using Mechanical Means (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2789355X | 1951-07-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL81213C true NL81213C (https=) |
Family
ID=7998419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL81213D NL81213C (https=) | 1951-07-28 |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US2789355A (https=) |
| NL (1) | NL81213C (https=) |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US552988A (en) * | 1896-01-14 | Ruler and paper-cutter | ||
| US147943A (en) * | 1874-02-24 | William a | ||
| US704313A (en) * | 1901-10-17 | 1902-07-08 | Benjamin M Gerardin | Rule. |
| US1511378A (en) * | 1921-02-12 | 1924-10-14 | Victor A Strom | Parallel ruler |
| BE362717A (https=) * | 1928-08-06 | |||
| US1834745A (en) * | 1930-03-10 | 1931-12-01 | Shifner Nicholas | Slide rule |
| GB352755A (en) * | 1930-07-28 | 1931-07-16 | Otto Edward Soderman | Improvements in drafting instruments |
| US2403382A (en) * | 1944-03-20 | 1946-07-02 | Lerner Samuel | Slide rule |
-
0
- NL NL81213D patent/NL81213C/xx active
-
1952
- 1952-05-26 US US290026A patent/US2789355A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US2789355A (en) | 1957-04-23 |