NL91748C - - Google Patents
Info
- Publication number
- NL91748C NL91748C NL91748DA NL91748C NL 91748 C NL91748 C NL 91748C NL 91748D A NL91748D A NL 91748DA NL 91748 C NL91748 C NL 91748C
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/0009—Apparatus or processes specially adapted for manufacturing conductors or cables for forming corrugations on conductors or cables
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
- B21C37/15—Making tubes of special shape; Making tube fittings
- B21C37/20—Making helical or similar guides in or on tubes without removing material, e.g. by drawing same over mandrels, by pushing same through dies ; Making tubes with angled walls, ribbed tubes and tubes with decorated walls
- B21C37/205—Making helical or similar guides in or on tubes without removing material, e.g. by drawing same over mandrels, by pushing same through dies ; Making tubes with angled walls, ribbed tubes and tubes with decorated walls with annular guides
-
- 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)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Geophysics And Detection Of Objects (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR842418T | 1938-02-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
NL91748C true NL91748C (en) |
Family
ID=9311441
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL91748D NL91748C (en) | 1938-02-16 | ||
NL220878D NL220878A (en) | 1938-02-16 |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL220878D NL220878A (en) | 1938-02-16 |
Country Status (4)
Country | Link |
---|---|
US (1) | US2208422A (en) |
CH (1) | CH220878A (en) |
FR (1) | FR842418A (en) |
NL (2) | NL220878A (en) |
Families Citing this family (28)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE472150A (en) * | 1940-02-03 | |||
DE767938C (en) * | 1940-11-24 | 1955-03-10 | Telefunken Gmbh | Arrangement for the production of two pulse series with adjustable mutual phase shift |
NL72118C (en) * | 1941-03-05 | |||
US2421020A (en) * | 1941-03-11 | 1947-05-27 | Standard Telephones Cables Ltd | Detection of obstacles by electromagnetic waves |
BE470448A (en) * | 1942-03-20 | |||
BE475753A (en) * | 1942-06-23 | |||
US2416089A (en) * | 1942-06-26 | 1947-02-18 | Gen Electric | Selective pulse amplifier system |
US2433369A (en) * | 1942-07-24 | 1947-12-30 | Standard Telephones Cables Ltd | Antenna system and method of using same |
US2438927A (en) * | 1942-08-24 | 1948-04-06 | Standard Telephones Cables Ltd | Modulation means and method |
BE479419A (en) * | 1942-08-24 | |||
US2605464A (en) * | 1942-11-28 | 1952-07-29 | James R Moore | Synchronized pulse-echo detection system |
US2624044A (en) * | 1943-01-19 | 1952-12-30 | Allen H Schooley | Precision range finding apparatus |
US2481515A (en) * | 1943-03-30 | 1949-09-13 | Sperry Corp | Method and apparatus for pulseecho distance measuring |
US2948893A (en) * | 1943-04-06 | 1960-08-09 | John Robert Page | Automatic range indicating system |
US2489075A (en) * | 1943-04-17 | 1949-11-22 | Gen Electric | Pulse echo testing apparatus |
US2629867A (en) * | 1943-04-17 | 1953-02-24 | Allen H Schooley | Range aperturing device |
US2512703A (en) * | 1943-10-14 | 1950-06-27 | Sperry Corp | Radar direction and range indicating apparatus |
US2477485A (en) * | 1943-11-12 | 1949-07-26 | Gen Electric | Pulse echo beacon transponder |
US2432516A (en) * | 1943-12-30 | 1947-12-16 | Bell Telephone Labor Inc | Keyed pulse generator |
US2537065A (en) * | 1944-04-18 | 1951-01-09 | Sperry Corp | Gate generator |
US2522367A (en) * | 1944-08-05 | 1950-09-12 | Radio Patents Corp | Radio distance measuring system |
US2483187A (en) * | 1944-08-30 | 1949-09-27 | Philco Corp | Pulse radio echo distance indicator |
US2489852A (en) * | 1944-12-04 | 1949-11-29 | Gen Electric | Electronic trigger pulse generator |
US2591856A (en) * | 1944-12-09 | 1952-04-08 | Bell Telephone Labor Inc | Pulse echo distance indicator |
US2622151A (en) * | 1945-08-03 | 1952-12-16 | Conrad H Hoeppner | Pulse amplitude discriminator circuit |
US2543462A (en) * | 1945-10-19 | 1951-02-27 | Conrad L Longmire | Pulse equalizer |
US2680806A (en) * | 1949-12-24 | 1954-06-08 | Du Mont Allen B Lab Inc | Noise reducing synchronization circuit |
FR1015728A (en) * | 1950-03-30 | 1952-10-20 | Csf | Improvements to focused electron beam devices, such as microscopes |
-
0
- NL NL91748D patent/NL91748C/xx active
- NL NL220878D patent/NL220878A/xx unknown
-
1938
- 1938-02-16 FR FR842418D patent/FR842418A/en not_active Expired
- 1938-12-09 US US244814A patent/US2208422A/en not_active Expired - Lifetime
-
1939
- 1939-01-30 CH CH220878D patent/CH220878A/en unknown
Also Published As
Publication number | Publication date |
---|---|
US2208422A (en) | 1940-07-16 |
NL220878A (en) | |
FR842418A (en) | 1939-06-12 |
CH220878A (en) | 1942-04-30 |