JPS5423262B2 - - Google Patents
Info
- Publication number
- JPS5423262B2 JPS5423262B2 JP11312775A JP11312775A JPS5423262B2 JP S5423262 B2 JPS5423262 B2 JP S5423262B2 JP 11312775 A JP11312775 A JP 11312775A JP 11312775 A JP11312775 A JP 11312775A JP S5423262 B2 JPS5423262 B2 JP S5423262B2
- Authority
- JP
- Japan
- 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
Landscapes
- Lenses (AREA)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11312775A JPS5237447A (en) | 1975-09-20 | 1975-09-20 | Device for constructing an optical system for a wide-angle door viewer |
| US05/724,137 US4082434A (en) | 1975-09-20 | 1976-09-17 | Wide-angle optical system for door viewer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11312775A JPS5237447A (en) | 1975-09-20 | 1975-09-20 | Device for constructing an optical system for a wide-angle door viewer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5237447A JPS5237447A (en) | 1977-03-23 |
| JPS5423262B2 true JPS5423262B2 (https=) | 1979-08-13 |
Family
ID=14604209
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11312775A Granted JPS5237447A (en) | 1975-09-20 | 1975-09-20 | Device for constructing an optical system for a wide-angle door viewer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5237447A (https=) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5492515A (en) * | 1977-12-29 | 1979-07-21 | Kubota Ltd | Treating method for molten nickel alloy containing active metal |
| JPS5692110U (https=) * | 1979-12-14 | 1981-07-22 | ||
| US5138487A (en) * | 1991-01-09 | 1992-08-11 | Seung H. Han | Door viewer |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2538077A (en) * | 1948-05-27 | 1951-01-16 | Blosse Jean Charles Joseph | Optical viewer |
| JPS5245840Y2 (https=) * | 1971-05-17 | 1977-10-18 | ||
| JPS5052738U (https=) * | 1973-09-08 | 1975-05-21 |
-
1975
- 1975-09-20 JP JP11312775A patent/JPS5237447A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5237447A (en) | 1977-03-23 |