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Patent:CN2032309u

Patent:	CN 2032309u
Titel:	Simplest Ellipsograph Composed Of Compasses Attached With Two Needles And String
Datum:	08.02.1989
Ort:
Land:	China
Person:	Guorong Chen
Firma:
Links im Rechnerlexikon:	Ellipsograph
Schlagworte:
Link zum Patentamt: (ohne Garantie)	CN2032309u

• DATUM: 08.02.1989
• TITEL: SIMPLEST ELLIPSOGRAPH COMPOSED OF COMPASSES ATTACHED WITH TWO NEEDLES AND STRING
• PERSON: CHEN GUORONG CN