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Bielefeld, Germany

Wilhelm Stapel

USPTO Granted Patents = 6

Average Co-Inventor Count = 3.0

ph-index = 4

Forward Citations = 40(Granted Patents)

Location History:

Bunde, DE (1978 - 1982)
Bielefeld, DE (1989 - 1991)

Company Filing History:

Durkoppwerke Gmbh

Years Active: 1978-1991

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6 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 4998490 - Bobbin housing assembly in a sewing machine having at least one hook (1991-03-12),

2. 4981094 - Sewing machine having a device actuable by a pressure medium for (1991-01-01),

3. 4815404 - Servo device for a multineedle sewing machine with engageable and (1989-03-28),

4. 4364319 - Controlled thread clamp device for needle threads (1982-12-21),

5. 4137858 - Gripper and bobbin assembly for double-lock-stitch sewing machine (1979-02-06),

6. 4074645 - Controlled braking device for the gripper-thread bobbin of a double (1978-02-21),

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