发明授权
US3985219A Ribbon cartridge for automatic typewriter function 失效
色带盒用于自动打字机功能

Ribbon cartridge for automatic typewriter function
摘要:
A typewriter ribbon cartridge carrying at least one abutment thereon for engaging one or more typewriter functions and responsive means or mechanism to thereby actuate the typewriter function mechanism when the ribbon cartridge is inserted into the typewriter.
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