Drilldown: Patents
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Patents > National tech categories :
HU V/h or
USPC 244/30 or
USPC 244/80
& Number of claims:
4-5
& Number of diagram pages:
3
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Adrien Schmitt (1) ·
Albert Hugo Friedel (1) ·
Charles Groombridge (1) ·
Étienne Carret (1) ·
Harry D Newhart (1) ·
János Csorbai Szabó (1) ·
Károly Zuggó (1) ·
Marius Mathiesen (1) ·
Merrill E. Clark (1) ·
Morris Newgold (1) ·
Peter Cooper Hewitt (1) ·
Vincent Wisniewski (1) ·
William Alfred South (1)
Adrien Schmitt (1) ·
Albert Hugo Friedel (1) ·
Charles Groombridge (1) ·
Étienne Carret (1) ·
Harry D Newhart (1) ·
Harry L Roderick (1) ·
János Csorbai Szabó (1) ·
Károly Zuggó (1) ·
Marius Mathiesen (1) ·
Merrill E. Clark (1) ·
Morris Newgold (1) ·
Peter Cooper Hewitt (1) ·
Vincent Wisniewski (1) ·
William Alfred South (1)
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