JPS5221930A - Control circuit for studying device - Google Patents
Control circuit for studying deviceInfo
- Publication number
- JPS5221930A JPS5221930A JP50097400A JP9740075A JPS5221930A JP S5221930 A JPS5221930 A JP S5221930A JP 50097400 A JP50097400 A JP 50097400A JP 9740075 A JP9740075 A JP 9740075A JP S5221930 A JPS5221930 A JP S5221930A
- Authority
- JP
- Japan
- Prior art keywords
- control circuit
- studying device
- studying
- circuit
- control
- 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.)
- Pending
Links
Landscapes
- Electrically Operated Instructional Devices (AREA)
- Projection Apparatus (AREA)
- Recording Or Reproducing By Magnetic Means (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP50097400A JPS5221930A (en) | 1975-08-11 | 1975-08-11 | Control circuit for studying device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP50097400A JPS5221930A (en) | 1975-08-11 | 1975-08-11 | Control circuit for studying device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5221930A true JPS5221930A (en) | 1977-02-18 |
Family
ID=14191456
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP50097400A Pending JPS5221930A (en) | 1975-08-11 | 1975-08-11 | Control circuit for studying device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5221930A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4450781A (en) * | 1982-04-01 | 1984-05-29 | Usm Corporation | Thread wiping mechanism |
US5255623A (en) * | 1991-08-23 | 1993-10-26 | The Singer Company N.V. | Wiper for a sewing machine |
US6568339B1 (en) * | 2000-06-28 | 2003-05-27 | Clinton Indusries, Inc. | Side mount thread wiper for a sewing machine |
-
1975
- 1975-08-11 JP JP50097400A patent/JPS5221930A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4450781A (en) * | 1982-04-01 | 1984-05-29 | Usm Corporation | Thread wiping mechanism |
US5255623A (en) * | 1991-08-23 | 1993-10-26 | The Singer Company N.V. | Wiper for a sewing machine |
US6568339B1 (en) * | 2000-06-28 | 2003-05-27 | Clinton Indusries, Inc. | Side mount thread wiper for a sewing machine |
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