Compound tools – With gauge or other measuring means – e.g. – ruler – level – etc.
Patent
1990-07-05
1991-08-20
Parker, Roscoe V.
Compound tools
With gauge or other measuring means, e.g., ruler, level, etc.
7160, 7163, 7170, 33760, 51214, 51181R, 76 86, 30138, 30451, B25F 100
Patent
active
050402560
ABSTRACT:
A combination tape measurer, pencil sharpener and knife blade sharpener is provided. The pencil and knife blade sharpeners are provided on a separate insert that is fitted onto the tape measurer. This allows each component to be used without interfering with the others. A conventional retractable tape measurer can be modified to produce the resultant combination tool.
REFERENCES:
patent: 752339 (1904-02-01), Gutstein
patent: 2767530 (1956-10-01), Paldanius
patent: 3809137 (1974-05-01), Dombroski
patent: 4428515 (1984-01-01), Mayer
patent: 4744150 (1988-05-01), Horvath
patent: 4766673 (1988-08-01), Bolson
patent: 4783867 (1988-11-01), Tsao
Litman Richard C.
Parker Roscoe V.
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