Drilldown: Patents
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Patents > Year granted:
1900 - 1909
& Inventor country :
AH or
AU
& National tech categories :
DE 77 or
FR 5 or
FR 6.4 or
IT 8 or
USPC 416/197A
& Number of claims:
None
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Showing below up to 1 result in range #1 to #1.