Drilldown: Patents
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Patents > Year granted:
1900 - 1909
& Office:
US
& Inventor country :
AH or
AU or
MX
& National tech categories :
AT 77d or
DE 77 or
USPC 244/45R or
USPC 416/197A
Use the filters below to narrow your results.
Showing below up to 1 result in range #1 to #1.