Drilldown: Patents
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Patents > Grant date:
1907
& National tech categories :
IT 8 or
USPC 244/22 or
USPC 244/80
& Cites these patents :
Patent AT-1909-47911 or
USPC 244/26 or
USPC 244/87 or
None
& Citations from after 1930:
None
& Number of diagram pages:
2-3
& Number of figures:
6-8
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Showing below up to 1 result in range #1 to #1.