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Patents Grants
last 30 patents
Information
Patent Grant
Downrigger
Patent number
4,156,320
Issue date
May 29, 1979
DFK Inc.
James A. Kammeraad
A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
Information
Patent Grant
Trolling weight
Patent number
D243177
Issue date
Jan 25, 1977
DFK Inc.
James A. Kammeraad
D22 - Arms, pyrotechnics, hunting and fishing equipment
Information
Patent Grant
Downrigger
Patent number
3,968,587
Issue date
Jul 13, 1976
DFK Inc.
James Allen Kammeraad
A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
Patents Applications
last 30 patents
Trademark
last 30 trademarks
Information
Trademark
79363558 - ROWBRO
Serial number
79363558
Filing date
Jul 29, 2022
DFK AG
28 - Games and playthings
Information
Trademark
73086422 - INVADER
Serial number
73086422
Registration number
1058548
Filing date
May 7, 1976
DFK, INC.
28 - Games and playthings