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Patent:CN2078695u

Patent:	CN 2078695u
Title:	Double-Centring Ellipsograph
Date:	12.06.1991
Place:
Country:	China
Person:	Jianqiang Yang
Company:
Internal Links:	Ellipsograph
Keywords:
Link to the patent office: (without guarantee)	CN2078695u

• DATUM: 12.06.1991
• TITEL: DOUBLE-CENTRING ELLIPSOGRAPH
• PERSON: YANG JIANQIANG CN