FR38057E - Improvements to photoelectric cells - Google Patents
Improvements to photoelectric cellsInfo
- Publication number
- FR38057E FR38057E FR38057DA FR38057E FR 38057 E FR38057 E FR 38057E FR 38057D A FR38057D A FR 38057DA FR 38057 E FR38057 E FR 38057E
- Authority
- FR
- France
- Prior art keywords
- photoelectric cells
- photoelectric
- cells
- 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
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J40/00—Photoelectric discharge tubes not involving the ionisation of a gas
- H01J40/02—Details
- H01J40/04—Electrodes
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B81/00—Cabinets or racks specially adapted for other particular purposes, e.g. for storing guns or skis
- A47B81/06—Furniture aspects of radio, television, gramophone, or record cabinets
- A47B81/067—Record cabinets
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J40/00—Photoelectric discharge tubes not involving the ionisation of a gas
- H01J40/02—Details
- H01J40/04—Electrodes
- H01J40/06—Photo-emissive cathodes
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU1840728X | 1928-03-27 | ||
US319734XA | 1928-09-27 | 1928-09-27 | |
US308715A US1843728A (en) | 1928-09-27 | 1928-09-27 | Photo-electric tube |
Publications (1)
Publication Number | Publication Date |
---|---|
FR38057E true FR38057E (en) | 1931-03-19 |
Family
ID=27158331
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR38057D Expired FR38057E (en) | 1928-03-27 | 1929-09-27 | Improvements to photoelectric cells |
Country Status (2)
Country | Link |
---|---|
US (1) | US1840728A (en) |
FR (1) | FR38057E (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2539647A (en) * | 1945-12-21 | 1951-01-30 | George Albert Wagner | Record selecting and ejecting device |
US2488532A (en) * | 1946-06-05 | 1949-11-22 | United Shoe Machinery Corp | Machine for use in attaching soles to shoes |
US3216773A (en) * | 1963-04-30 | 1965-11-09 | Martin Joseph | Phonograph record rack and selector |
US4695103A (en) * | 1986-04-28 | 1987-09-22 | Continental Molding Corporation | Diskette holder |
-
1928
- 1928-05-16 US US278215A patent/US1840728A/en not_active Expired - Lifetime
-
1929
- 1929-09-27 FR FR38057D patent/FR38057E/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US1840728A (en) | 1932-01-12 |
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