Proportional spacing mechanism
United States Patent 3018870

Inventors:
Lambert, Harry L.
WEST HARTFORD
Page, Paul F.
Publication Date:
01/30/1962
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Assignee:
ROYAL MCBEE CORP
Primary Class:
400/306.100
Other Classes:
400/303, 400/284
International Classes:
B41J19/58; B41J19/34
US Patent References:
2794530Variable escapement mechanism for typewriters
Foreign References:
IT529261B