Patent classifications
B
PERFORMING OPERATIONS; TRANSPORTING
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B41
PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
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B41J
TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
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5/00
Devices or arrangements for controlling character selection
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B41J5/08
Character or syllable selected by means of keys or keyboards of the typewriter type
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B41J5/10
Arrangements of keyboards; , e.g. key button disposition
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