Measuring instrument

Details Measuring instrument Measuring instrument

1991-07-15

1993-05-11

Cuchlinski, Jr., William A.

Geometrical instruments

Straightedge type

Plural straightedges, relatively moveable

33465, 33418, 33456, 33499, B43L 710, B43L 712

Patent

active

052089924

ABSTRACT:
An improved measuring apparatus (10) including male (12) and female (11) measuring instruments equipped with complimentary pairs of male (14) and female (13) sleeve bodies bearing a multiplicity of variably aligned calibrated indicia (50) representative of different drawing scales; wherein, the male (12) and female (11) measuring instruments are adapted to be captively engaged in L and inverted L configurations as well as in an end to end straight line configuration.

REFERENCES:
patent: 909023 (1909-01-01), Ratner
patent: 1638200 (1927-08-01), Hester
patent: 1919551 (1933-07-01), Griffin
patent: 2182027 (1939-12-01), Little
patent: 3343265 (1967-09-01), Puerta
patent: 4446627 (1984-05-01), Persson
patent: 4505044 (1985-03-01), Shafii-Rad-G
patent: 4531302 (1985-07-01), Tighe
patent: 4562649 (1986-01-01), Ciavarella
patent: 4910876 (1990-03-01), Channell
patent: 4920658 (1990-05-01), Hile
patent: 5020233 (1991-06-01), Syken

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