NL31210C - - Google Patents
Info
- Publication number
- NL31210C NL31210C NL31210DA NL31210C NL 31210 C NL31210 C NL 31210C NL 31210D A NL31210D A NL 31210DA NL 31210 C NL31210 C NL 31210C
- Authority
- NL
- Netherlands
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S1/00—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
- G01S1/02—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using radio waves
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Transmission Devices (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US377371A US1894976A (en) | 1929-07-11 | 1929-07-11 | Dial engraving machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL31210C true NL31210C (fr) |
Family
ID=23488841
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL31210D NL31210C (fr) | 1929-07-11 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US1894976A (fr) |
| DE (1) | DE565333C (fr) |
| GB (1) | GB344325A (fr) |
| NL (1) | NL31210C (fr) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2438813A (en) * | 1945-09-15 | 1948-03-30 | Western Electric Co | Engraving apparatus |
| US2663082A (en) * | 1950-05-27 | 1953-12-22 | Zeiss Opton Optische Werke | Device for production of uniform circle graduations |
-
0
- NL NL31210D patent/NL31210C/xx active
-
1929
- 1929-07-11 US US377371A patent/US1894976A/en not_active Expired - Lifetime
-
1930
- 1930-07-05 DE DE1930565333D patent/DE565333C/de not_active Expired
- 1930-07-11 GB GB21114/30A patent/GB344325A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US1894976A (en) | 1933-01-24 |
| DE565333C (de) | 1932-11-29 |
| GB344325A (en) | 1931-03-05 |