ELECTROSTRICTIVE PRINT HAMMER ACTUATOR IN HIGH SPEED PRINTERS
United States Patent 3473466

Inventors:
Thayer, Louis C.
Publication Date:
10/21/1969
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Assignee:
FRIDEN INC
Primary Class:
101/93.340
Other Classes:
310/328, 310/26
International Classes:
B41J9/36; G06K1/02; H01H57/00; B41J9/00; G06K1/00; B41C3/08
US Patent References:
3112693Transducer unit for printing type element
3151543High speed printer with magnetostrictive impression members
3172352Printing hammer assembly
3242855Electrostrictive printer




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