GB646196A - Improvements in commutators having a marking multiple common to several marking devices - Google Patents
Improvements in commutators having a marking multiple common to several marking devicesInfo
- Publication number
- GB646196A GB646196A GB7984/47A GB798447A GB646196A GB 646196 A GB646196 A GB 646196A GB 7984/47 A GB7984/47 A GB 7984/47A GB 798447 A GB798447 A GB 798447A GB 646196 A GB646196 A GB 646196A
- Authority
- GB
- United Kingdom
- Prior art keywords
- circuit
- relays
- test
- marking
- relay
- Prior art date
- 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
Links
- 239000003550 marker Substances 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
- H04R25/35—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception using translation techniques
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Neurosurgery (AREA)
- Otolaryngology (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Monitoring And Testing Of Exchanges (AREA)
- Mechanisms For Operating Contacts (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR901359T | 1943-09-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB646196A true GB646196A (en) | 1950-11-15 |
Family
ID=9401782
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB7984/47A Expired GB646196A (en) | 1943-09-07 | 1946-03-14 | Improvements in commutators having a marking multiple common to several marking devices |
Country Status (6)
-
1943
- 1943-09-07 FR FR901359D patent/FR901359A/fr not_active Expired
-
1944
- 1944-02-08 NL NL115194A patent/NL60927C/nl active
- 1944-12-19 CH CH250537D patent/CH250537A/fr unknown
-
1946
- 1946-02-22 LU LU27852D patent/LU27852A1/fr unknown
- 1946-03-14 GB GB7984/47A patent/GB646196A/en not_active Expired
- 1946-04-30 BE BE464926A patent/BE464926A/fr unknown
Also Published As
Publication number | Publication date |
---|---|
FR901359A (fr) | 1945-07-25 |
NL60927C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1948-04-15 |
CH250537A (fr) | 1947-08-31 |
BE464926A (fr) | 1946-05-31 |
LU27852A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1945-12-22 |
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