Drilldown: Patents
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Patents > Year granted:
1911
& Inventor country :
CH or
ES or
US
& Filing date:
1910 - 1919
& Assigned to:
None
& National tech categories :
USPC 244/22 or
USPC 244/30
& Cites these patents :
Patent GB-1912-5966 or
None
& Number of text pages:
4
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Showing below up to 2 results in range #1 to #2.