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Dietmar Pfefferkorn
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Hemsbach, DE
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last 30 patents
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Patent Grant
Right parallelepiped cassette for tape-like recording media, and ho...
Patent number
4,964,588
Issue date
Oct 23, 1990
BASF Aktiengesellschaft
Bernd Hoffrichter
G11 - INFORMATION STORAGE
Information
Patent Grant
Right parallelepiped cassette for tape-like recording media, and ho...
Patent number
4,809,928
Issue date
Mar 7, 1989
BASF Aktiengesellschaft
Bernd Hoffrichter
G11 - INFORMATION STORAGE
Information
Patent Grant
Adjusting means in particular for guide elements, and magnetic tape...
Patent number
4,709,288
Issue date
Nov 24, 1987
BASF Aktiengesellschaft
Norbert Schaeffer
G11 - INFORMATION STORAGE
Information
Patent Grant
Tape cassette containing echo-erasing means
Patent number
4,656,548
Issue date
Apr 7, 1987
BASF Aktiengesellschaft
Dietmar Pfefferkorn
G11 - INFORMATION STORAGE
Information
Patent Grant
Tape cassette, in particular a magnetic tape cassette, and a reel s...
Patent number
4,632,334
Issue date
Dec 30, 1986
BASF Aktiengesellschaft
Norbert Schaeffer
C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information
Patent Grant
Tape cassette comprising a substantially rectangular two-part housing
Patent number
4,566,653
Issue date
Jan 28, 1986
BASF Aktiengesellschaft
Guenter Bettinger
G11 - INFORMATION STORAGE
Information
Patent Grant
Hub for magnetic tape cassettes, especially compact cassettes, and...
Patent number
4,541,587
Issue date
Sep 17, 1985
BASF Aktiengesellschaft
Werner Stumpfi
G11 - INFORMATION STORAGE
Information
Patent Grant
Hub for magnetic tape cassettes, especially compact cassettes, and...
Patent number
4,515,331
Issue date
May 7, 1985
BASF Aktiengesellschaft
Werner Stumpfi
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic tape cassette arrangements
Patent number
4,453,683
Issue date
Jun 12, 1984
BASF Aktiengesellschaft
Karl-Juergen Reimer
G11 - INFORMATION STORAGE
Information
Patent Grant
Method and apparatus for measuring the electroacoustic properties o...
Patent number
4,251,882
Issue date
Feb 17, 1981
BASF Aktiengesellschaft
Dietmar Pfefferkorn
G11 - INFORMATION STORAGE