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Patent:CN2053770u

Brevetto:	CN 2053770u
Titolo:	Slide Rule For Calculating Common Metal Materials Weight
Data:	28.02.1990
Luogo:
Nazione:	Cina
Persona:	Changda Peng
Ditta:
Link interni:	Rechenschieber
Keywords:
Link al brevetto: (without guarantee)	CN2053770u

• DATUM: 28.02.1990
• TITEL: SLIDE RULE FOR CALCULATING COMMON METAL MATERIALS WEIGHT
• PERSON: PENG CHANGDA CN