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Patent:CN2042612u

Brevetto:	CN 2042612u
Titolo:	Student Slide Rule For Division And Multiplication Operation
Data:	09.08.1989
Luogo:
Nazione:	Cina
Persona:	Su Mingkun
Ditta:
Link interni:	Rechenschieber
Keywords:
Link al brevetto: (without guarantee)	CN2042612u

• DATUM: 09.08.1989
• TITEL: STUDENT SLIDE RULE FOR DIVISION AND MULTIPLICATION OPERATION
• PERSON: SU MINGKUN CN