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Patent:US2501444

Patent:	US 2501444
Title:	Calculating Machine
Date:	21.03.1950
Place:
Country:	USA
Person:	Gollwitzer, Walter (P)
Company:	Addressograph Multigraph
Internal Links:
Keywords:
Link to the patent office: (without guarantee)	US2501444 (espacenet),  US2501444 (uspto)

Aus der Patentschrift US2501444

• DATUM: 21.03.1950
• TITEL: Calculating machine
• PERSON: ADDRESSOGRAPH MULTIGRAPH
• Patent Family: ( Patent:US2501444, Patent:US2513998, Patent:US2581649 )