FR2177857A1 - - Google Patents
Info
- Publication number
- FR2177857A1 FR2177857A1 FR7310261A FR7310261A FR2177857A1 FR 2177857 A1 FR2177857 A1 FR 2177857A1 FR 7310261 A FR7310261 A FR 7310261A FR 7310261 A FR7310261 A FR 7310261A FR 2177857 A1 FR2177857 A1 FR 2177857A1
- Authority
- FR
- France
- 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.)
- Withdrawn
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/007—Pressure-resistant sight glasses
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Farming Of Fish And Shellfish (AREA)
- Pressure Vessels And Lids Thereof (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19722215339 DE2215339A1 (de) | 1972-03-29 | 1972-03-29 | Beobachtungseinrichtung in behaeltern, deren innen- oder aussenseite hohen druecken ausgesetzt wird |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2177857A1 true FR2177857A1 (fr) | 1973-11-09 |
Family
ID=5840547
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7310261A Withdrawn FR2177857A1 (fr) | 1972-03-29 | 1973-03-22 |
Country Status (7)
Country | Link |
---|---|
JP (1) | JPS497809A (fr) |
BE (1) | BE797319A (fr) |
DE (1) | DE2215339A1 (fr) |
FR (1) | FR2177857A1 (fr) |
IT (1) | IT983625B (fr) |
LU (1) | LU67309A1 (fr) |
NL (1) | NL7303573A (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2554248A1 (fr) * | 1983-10-26 | 1985-05-03 | France Etat Armement | Hublot, notamment pour observations sous-marines |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6931333B2 (ja) * | 2018-03-02 | 2021-09-01 | 三菱重工業株式会社 | 水中構造体 |
-
1972
- 1972-03-29 DE DE19722215339 patent/DE2215339A1/de active Pending
-
1973
- 1973-03-14 NL NL7303573A patent/NL7303573A/xx unknown
- 1973-03-22 FR FR7310261A patent/FR2177857A1/fr not_active Withdrawn
- 1973-03-26 BE BE129251A patent/BE797319A/fr unknown
- 1973-03-27 LU LU67309D patent/LU67309A1/xx unknown
- 1973-03-27 IT IT2218573A patent/IT983625B/it active
- 1973-03-28 JP JP3555273A patent/JPS497809A/ja active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2554248A1 (fr) * | 1983-10-26 | 1985-05-03 | France Etat Armement | Hublot, notamment pour observations sous-marines |
Also Published As
Publication number | Publication date |
---|---|
NL7303573A (fr) | 1973-10-02 |
LU67309A1 (fr) | 1973-06-08 |
BE797319A (fr) | 1973-07-16 |
DE2215339A1 (de) | 1973-10-18 |
IT983625B (it) | 1974-11-11 |
JPS497809A (fr) | 1974-01-24 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |