Drilldown: Patents
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Patents > Year granted:
1860 - 1869
& Inventor country:
US
& Application number:
None
& National tech categories:
USPC 244/3.23
& CPCs:
CPC F42B10/30
& Cites these patents :
USPC 244/87 or
None
& Number of text pages:
1
& Number of diagram pages:
1
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Showing below up to 3 results in range #1 to #3.