Thumb shift for typewriters

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Bibliographic Details
Main Author YOUNG NOAH A
Format Patent
LanguageEnglish
Published 13.02.1934
Subjects
CORRECTION OF TYPOGRAPHICAL ERRORS
i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME
LINING MACHINES
PERFORMING OPERATIONS
PRINTING
SELECTIVE PRINTING MECHANISMS
STAMPS
TRANSPORTING
TYPEWRITERS
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Bibliography:Application Number: US19330659007