Drilldown: Patents
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Patents > Inventors :
John Kobbe or
Linley Gumm or
Phil Crosby
& Grant date:
1970 - 1979
& Cites :
Patent US 3214631A or
Patent US 3562464A or
Patent US 4048577A or
Patent US 4146844A or
Other or
None
Use the filters below to narrow your results.
Showing below up to 6 results in range #1 to #6.