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Patents Grantslast 30 patents

Information Patent Grant
Device for reading directly from a chart the heading to be followed...
- Patent number 4,941,264
- Issue date Jul 17, 1990
- Alain Poirier
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
2597609
- Patent number 2,597,609
- Issue date May 20, 1952
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
2513491
- Patent number 2,513,491
- Issue date Jul 4, 1950
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
2252749
- Patent number 2,252,749
- Issue date Aug 19, 1941
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
2233830
- Patent number 2,233,830
- Issue date Mar 4, 1941
- G06 - COMPUTING CALCULATING COUNTING