JPS493819A - - Google Patents
Info
- Publication number
- JPS493819A JPS493819A JP4373672A JP4373672A JPS493819A JP S493819 A JPS493819 A JP S493819A JP 4373672 A JP4373672 A JP 4373672A JP 4373672 A JP4373672 A JP 4373672A JP S493819 A JPS493819 A JP S493819A
- 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
Landscapes
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4373672A JPS493819A (cs) | 1972-05-04 | 1972-05-04 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4373672A JPS493819A (cs) | 1972-05-04 | 1972-05-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS493819A true JPS493819A (cs) | 1974-01-14 |
Family
ID=12672056
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4373672A Pending JPS493819A (cs) | 1972-05-04 | 1972-05-04 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS493819A (cs) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5139557A (en) * | 1989-04-12 | 1992-08-18 | Nippon Sheet Glass Co., Ltd. | Method of performing an ion exchange of optical glass |
-
1972
- 1972-05-04 JP JP4373672A patent/JPS493819A/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5139557A (en) * | 1989-04-12 | 1992-08-18 | Nippon Sheet Glass Co., Ltd. | Method of performing an ion exchange of optical glass |