Drilldown: Patents
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Patents > Applicant is inventor:
Yes 
& Supplementary to patent :
Patent CH-1907-41855 or
Patent NO-1915-12-15 Carl Alfred Johansson
& Supplementary to patent :
Patent CH-1907-41855 or
Patent NO-1915-12-15 Carl Alfred Johansson Use the filters below to narrow your results.
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None (5) ·
CH 129b (1) ·
DE 77 (2) ·
FR 5.8 (1) ·
FR 6.4 (1) ·
HU V/h (1) ·
IT 8 (1) ·
NO 77h (1) ·
USPC 244/80 (1) ·
USPC 244/93 (1)
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