having automatic means for changing type-characters

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Patents Grantslast 30 patents

Information Patent Grant
Method for intaglio printing and selectively alterable inking plate...
- Patent number 4,473,008
- Issue date Sep 25, 1984
- RCA Corporation
- Philip M. Heyman
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
3872787
- Patent number 3,872,787
- Issue date Mar 25, 1975
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
3344739
- Patent number 3,344,739
- Issue date Oct 3, 1967
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
3261283
- Patent number 3,261,283
- Issue date Jul 19, 1966
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
3173359
- Patent number 3,173,359
- Issue date Mar 16, 1965
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
2661896
- Patent number 2,661,896
- Issue date Dec 8, 1953
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
2255453
- Patent number 2,255,453
- Issue date Sep 9, 1941
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
2207966
- Patent number 2,207,966
- Issue date Jul 16, 1940
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES