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USA
Patent:US1414855
Patent:
US 1414855
Title:
Time Meter
Date:
02.05.1922
Place:
Country:
USA
Person:
R. E. Bishop
Company:
Internal Links:
Keywords:
Link to the patent office:
(without guarantee)
US1414855
(espacenet),
US1414855
(uspto)
Aus der Patentschrift US1414855