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Patents
Printing And Office Machinery Patents
Typewriter Or Calculator Patents
Calculator (3) Patents
With Keyboard Patents
With Carriage Patents (Class D18/8)
With Carriage Patents (Class D18/8)
Electronic calculator
Patent number:
D275964
Type:
Grant
Filed:
August 23, 1982
Date of Patent:
October 16, 1984
Assignee:
Ing. C. Olivetti & C., S.p.A.
Inventor:
Mario Bellini