JPS55144318U - - Google Patents
Info
- Publication number
- JPS55144318U JPS55144318U JP1979043957U JP4395779U JPS55144318U JP S55144318 U JPS55144318 U JP S55144318U JP 1979043957 U JP1979043957 U JP 1979043957U JP 4395779 U JP4395779 U JP 4395779U JP S55144318 U JPS55144318 U JP S55144318U
- 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.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B25/00—Eyepieces; Magnifying glasses
- G02B25/04—Eyepieces; Magnifying glasses affording a wide-angle view, e.g. through a spy-hole
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lenses (AREA)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1979043957U JPS55144318U (cg-RX-API-DMAC10.html) | 1979-04-05 | 1979-04-05 | |
| US06/136,303 US4348083A (en) | 1979-04-05 | 1980-04-01 | Crime preventive door viewer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1979043957U JPS55144318U (cg-RX-API-DMAC10.html) | 1979-04-05 | 1979-04-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS55144318U true JPS55144318U (cg-RX-API-DMAC10.html) | 1980-10-16 |
Family
ID=12678175
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1979043957U Pending JPS55144318U (cg-RX-API-DMAC10.html) | 1979-04-05 | 1979-04-05 |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US4348083A (cg-RX-API-DMAC10.html) |
| JP (1) | JPS55144318U (cg-RX-API-DMAC10.html) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4809320A (en) * | 1987-08-06 | 1989-02-28 | Hawkins Gary D | Door security system |
| USD330382S (en) | 1990-04-10 | 1992-10-20 | Degnan Donald E | Panoramic door viewer |
| IL99941A (en) * | 1991-11-01 | 1997-02-18 | Goldstein Pinchas | Spyhole viewer |
| US5550673A (en) * | 1991-11-01 | 1996-08-27 | Goldstein; Pinchas | Spyhole viewer |
| USD390584S (en) | 1997-04-04 | 1998-02-10 | Layton Adam S | Novelty interior security peephole cover |
| US6779305B2 (en) | 2002-04-29 | 2004-08-24 | Shan E. Harter | Door viewer plug |
| GB2435994A (en) * | 2006-03-08 | 2007-09-12 | Cell Security Ltd | A sight for a security door |
| US9714537B2 (en) * | 2014-09-11 | 2017-07-25 | Basic Design Solutions, Inc. | Door communication device |
| US11498396B1 (en) * | 2018-12-24 | 2022-11-15 | Robert N. Justice | Viewing port |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5237946B2 (cg-RX-API-DMAC10.html) * | 1973-07-31 | 1977-09-26 |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4116529A (en) * | 1976-11-29 | 1978-09-26 | Takeyoshi Yamaguchi | Wide-angle spyglass |
| US4175824A (en) * | 1977-09-13 | 1979-11-27 | Daley Nicholas G | Door viewer with barrel flange and mating lens recess |
| US4172636A (en) * | 1977-09-26 | 1979-10-30 | Nicon Co., Ltd. | Door scope |
-
1979
- 1979-04-05 JP JP1979043957U patent/JPS55144318U/ja active Pending
-
1980
- 1980-04-01 US US06/136,303 patent/US4348083A/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5237946B2 (cg-RX-API-DMAC10.html) * | 1973-07-31 | 1977-09-26 |
Also Published As
| Publication number | Publication date |
|---|---|
| US4348083A (en) | 1982-09-07 |