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Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for employing an unregulated power supply to p...
- Patent number 5,157,317
- Issue date Oct 20, 1992
- CalComp Inc.
- August D. Coby
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
System for making covering masks for use in photoengraving
- Patent number 4,933,712
- Issue date Jun 12, 1990
- Toppan Printing Co., Ltd.
- Akira Kisaku
- B44 - DECORATIVE ARTS
Information Patent Grant
Numerically controlled writing instrument
- Patent number 4,718,000
- Issue date Jan 5, 1988
- Kurt Held
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Grant
Computer-aided drawing or engraving device
- Patent number 4,625,410
- Issue date Dec 2, 1986
- Franz Kuhlmann Prazisionsmechanik und Maschinenbau GmbH & Co. KG
- Hans Eder
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Grant
Two-axis positioning system
- Patent number 4,507,598
- Issue date Mar 26, 1985
- Matsushita Electric Industrial Co., Ltd.
- Noriaki Wakabayashi
- G05 - CONTROLLING REGULATING
Information Patent Grant
Stylus changing device
- Patent number 4,288,798
- Issue date Sep 8, 1981
- Goerz Electro Gesellschaft m.b.H.
- Walter Hollmayer
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Grant
3143804
- Patent number 3,143,804
- Issue date Aug 11, 1964
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES