Drilldown: Patents
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Patents > Office :
GR or
US
& National tech categories :
DE 77h or
USPC 244/80
& Number of claims:
1-4
& Number of figures:
3-5
Use the filters below to narrow your results.
Albert M. Collins (1) ·
Carl Alfred Johansson (1) ·
Daniel Stephen Dickens (1) ·
FRANK G BURKE JR (1) ·
Harry D Newhart (1) ·
Harry L Roderick (1) ·
Jacob Christian Hansen-Ellehammer (1) ·
James Mackin (1) ·
Jens Wulff (1) ·
Joseph Thompson Parker (1) ·
Marius Mathiesen (1) ·
Niels Waltersen Aasen (1)
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