Drilldown: Patents
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Patents > Office
:
??
or
US
& National tech categories
:
AT 77d
or
USPC 244/3.23
or
USPC 244/30
or
USPC 244/80
& Cites these patents
:
1910
or
Patent AT-1909-47911
or
USPC 244/87
or
None
& Citations from after 1930:
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Use the filters below to narrow your results.
C. H. Welling (1) ·
Christopher C. Brand (1) ·
Clayton M. Daniels (1) ·
Edward Spencer (1) ·
Elbert Perce (1) ·
Elisha Matteson (1) ·
Frank M. Ashley (1) ·
George B. Ross (1) ·
Joachim Adolfowicz Sumovski (1) ·
Louis Gathmann (1) ·
Mills L. Callender (1) ·
Nicolas Gherassimoff (1) ·
Philip G. Russell (1) ·
Rufus Sibley (1) ·
S. C. Abbot (1) ·
Simon Lake (1) ·
W. E. Browne (1)
Showing below up to 13 results in range #1 to #13.
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