Brevetti   Gran Bretagna  

Patent:GB749157

Brevetto:	GB 749157
Titolo:	An improved ribbon spool for typewriters and calculating machines
Data:	16.05.1956
Luogo:
Nazione:	Gran Bretagna
Persona:	Hans Bernard und Paul Regentrop
Ditta:
Link interni:
Keywords:
Link al brevetto: (without guarantee)	GB749157

Aus der Patentschrift GB749157

• DATUM: 16.05.1956
• TITEL: An improved ribbon spool for typewriters and calculating machines
• PERSON: PAUL REGENTROP