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| All Patents in class 33/41.5 | |||||
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| Number | Date | Patentee | Title | Type | |
| 2,409,106 | Oct. 08, 1946 | R.T. Connelly | Linoleum Scriber | scribes | |
| 2,557,699 | Jun. 19, 1951 | W. Silver | Linoleum Scriber | scribes | |
| 3,643,335 | Feb. 22, 1972 | E.J. Smith | Tile Marking Device | scribes | |