GB1303466A - - Google Patents
Info
- Publication number
- GB1303466A GB1303466A GB1303466DA GB1303466A GB 1303466 A GB1303466 A GB 1303466A GB 1303466D A GB1303466D A GB 1303466DA GB 1303466 A GB1303466 A GB 1303466A
- Authority
- GB
- United Kingdom
- Prior art keywords
- mirror
- workpiece
- plate
- standard
- representation
- 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
- 239000000696 magnetic material Substances 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B9/00—Measuring instruments characterised by the use of optical techniques
- G01B9/08—Optical projection comparators
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
- Optical Elements Other Than Lenses (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB5380370 | 1970-11-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1303466A true GB1303466A (enExample) | 1973-01-17 |
Family
ID=10469034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1303466D Expired GB1303466A (enExample) | 1970-11-12 | 1970-11-12 |
Country Status (7)
| Country | Link |
|---|---|
| BR (1) | BR7107594D0 (enExample) |
| DE (1) | DE2156088A1 (enExample) |
| ES (1) | ES396880A1 (enExample) |
| FR (1) | FR2114027B1 (enExample) |
| GB (1) | GB1303466A (enExample) |
| IT (1) | IT940489B (enExample) |
| NL (1) | NL7115517A (enExample) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4005939A (en) * | 1975-10-09 | 1977-02-01 | Stavalone Lawrence S | Optical comparator for testing printed circuit boards |
| US4368950A (en) * | 1979-12-01 | 1983-01-18 | Dainippon Screen Mfg., Co., Ltd. | Image observation device having glass piled half mirror |
| GB2214145A (en) * | 1988-02-22 | 1989-08-31 | Ian Sydney Crawford | Rear-view mirror having non-reflective portions |
-
1970
- 1970-11-12 GB GB1303466D patent/GB1303466A/en not_active Expired
-
1971
- 1971-11-08 IT IT3081371A patent/IT940489B/it active
- 1971-11-10 ES ES396880A patent/ES396880A1/es not_active Expired
- 1971-11-11 DE DE19712156088 patent/DE2156088A1/de active Pending
- 1971-11-11 NL NL7115517A patent/NL7115517A/xx unknown
- 1971-11-12 BR BR759471A patent/BR7107594D0/pt unknown
- 1971-11-12 FR FR7141394A patent/FR2114027B1/fr not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4005939A (en) * | 1975-10-09 | 1977-02-01 | Stavalone Lawrence S | Optical comparator for testing printed circuit boards |
| US4368950A (en) * | 1979-12-01 | 1983-01-18 | Dainippon Screen Mfg., Co., Ltd. | Image observation device having glass piled half mirror |
| GB2214145A (en) * | 1988-02-22 | 1989-08-31 | Ian Sydney Crawford | Rear-view mirror having non-reflective portions |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2114027A1 (enExample) | 1972-06-30 |
| IT940489B (it) | 1973-02-10 |
| FR2114027B1 (enExample) | 1973-06-29 |
| BR7107594D0 (pt) | 1973-03-13 |
| ES396880A1 (es) | 1974-07-01 |
| NL7115517A (enExample) | 1972-05-16 |
| DE2156088A1 (de) | 1972-05-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |